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		<title>A captcha that we could use</title>
		<link>http://www.allegro.cc/forums/view/608065</link>
		<description>Allegro.cc Forum Thread</description>
		<webMaster>matthew@allegro.cc (Matthew Leverton)</webMaster>
		<lastBuildDate>Thu, 11 Aug 2011 22:28:09 +0000</lastBuildDate>
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		<description><![CDATA[<div class="mockup v2"><p><a href="http://www.happyplace.com/9574/grammar-test-keeps-idiots-off-of-the-internet">Samples here</a></p><p><a href="http://www.defectiveyeti.com/iacaptchas/">Try it</a></p><p>Too bad the dude who made it wants it to be internet access only right now.
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		<author>no-reply@allegro.cc (MiquelFire)</author>
		<pubDate>Wed, 10 Aug 2011 00:33:49 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>A bot would miss a few by guessing, but it&#39;d frustrate the grammatically challenged.
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		<author>no-reply@allegro.cc (Arthur Kalliokoski)</author>
		<pubDate>Wed, 10 Aug 2011 00:36:25 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>I like the <a href="http://research.microsoft.com/en-us/um/redmond/projects/asirra/">Pick the cats</a> captcha.
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		<author>no-reply@allegro.cc (blargmob)</author>
		<pubDate>Wed, 10 Aug 2011 01:06:55 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>They need to make a version of that pick the cats captcha that doesn&#39;t require JavaScript. Outside of that issue, as a real captcha, I see it working.
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		<author>no-reply@allegro.cc (MiquelFire)</author>
		<pubDate>Wed, 10 Aug 2011 01:17:39 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><div class="quote_container"><div class="title"><a href="http://www.allegro.cc/forums/thread/608065/927678#target">Arthur Kalliokoski</a> said:</div><div class="quote"><p>A bot would miss a few by guessing, but it&#39;d frustrate the grammatically challenged.</p></div></div><p>That&#39;s the entire point.</p><div class="quote_container"><div class="title">that page said:</div><div class="quote"><p>How to keep the grammatically challenged off the Internet.</p></div></div><p>
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		<author>no-reply@allegro.cc (Thomas Fjellstrom)</author>
		<pubDate>Wed, 10 Aug 2011 01:21:46 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p><img src="http://www.allegro.cc/forums/smileys/grin.gif" alt=";D" /> Breed bots with perfect English grammar.<br />One Captcha I hate is is <a href="http://www.solvemedia.com/">Solve Media</a>. They use (American?) advertisements in their captcha&#39;s where you have to &#39;finish the sentence&#39;. I think the idea is genious, but WTF they used advertisements that I&#39;m not even familiar with. Their website isn&#39;t straightforward about the origins either. Can you imagine what kind of WTF-moments I had when I was deemed non-human ? <img src="http://www.allegro.cc/forums/smileys/angry.gif" alt="&gt;:(" />
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		<author>no-reply@allegro.cc (weapon_S)</author>
		<pubDate>Wed, 10 Aug 2011 17:50:54 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><div class="quote_container"><div class="title"><a href="http://www.allegro.cc/forums/thread/608065/927791#target">weapon_S</a> said:</div><div class="quote"><p>  They use (American?) advertisements in their captcha&#39;s where you have to &#39;finish the sentence&#39;. </p></div></div><p>You watch the video and type exactly what appears in &quot;quotes&quot;...
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		<author>no-reply@allegro.cc (Matthew Leverton)</author>
		<pubDate>Wed, 10 Aug 2011 18:48:40 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>Steam has (had?) notoriously difficult captchas (I don&#39;t think the service itself, but the forums and such). I can only solve like 5% of them. <img src="http://www.allegro.cc/forums/smileys/tongue.gif" alt=":P" /> I think a grammar based captcha system is a good idea, but it needs to be more complicated than that so that it can actually have thousands or millions of possible captchas. You&#39;d need to require somebody to fill in a few blanks, including properly capitalization and punctuation. It would need to be able to accommodate the occasional screw up by a human too.
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		<author>no-reply@allegro.cc (bamccaig)</author>
		<pubDate>Wed, 10 Aug 2011 19:12:32 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><div class="quote_container"><div class="title"><a href="http://www.allegro.cc/forums/thread/608065/927809#target">maxiblake</a> said:</div><div class="quote"><p>
The problem with this is that only educated people will be able to use the internet.
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s/problem/great thing
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		<author>no-reply@allegro.cc (kazzmir)</author>
		<pubDate>Wed, 10 Aug 2011 22:29:43 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>Keeping educated people from accessing a tremendous source of education seems a touch counter-productive ...
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		<author>no-reply@allegro.cc (23yrold3yrold)</author>
		<pubDate>Wed, 10 Aug 2011 22:38:56 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><div class="quote_container"><div class="title"><a href="http://www.allegro.cc/forums/thread/608065/927798#target">bamccaig</a> said:</div><div class="quote"><p>I think a grammar based captcha system is a good idea, but it needs to be more complicated than that so that it can actually have thousands or millions of possible captchas. You&#39;d need to require somebody to fill in a few blanks, including <s>properly</s> capitalization and punctuation. It would need to be able to accommodate the occasional screw up by a human too.</p></div></div><p>It doesn&#39;t need any of this. For the longest time <a href="http://www.codinghorror.com/blog/">Coding Horror</a> used a single CAPTCHA image, which from my own experience using similar techniques, stops approximately 95% of spam submissions.</p><p><img src="http://www.allegro.cc//djungxnpq2nug.cloudfront.net/image/cache/7/9/795caee78d1c1c31435a5e1d05b167b6.jpg" alt="CodingHorrorCaptcha.jpg" width="167" height="94" />
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		<author>no-reply@allegro.cc (CGamesPlay)</author>
		<pubDate>Wed, 10 Aug 2011 22:40:58 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>CAPTCHAs work well for stopping bots (although a simple Q&amp;A may work better), but they do nothing to stop SEO spammers. For example, of the last 100 a.cc registrations, 83 have been spammers manually registering via the help of form filling software, etc.
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		<author>no-reply@allegro.cc (Matthew Leverton)</author>
		<pubDate>Wed, 10 Aug 2011 23:07:03 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>Speaking of SEO spammers, one (Basementalice) posted a profile page on the wiki.
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		<author>no-reply@allegro.cc (Thomas Fjellstrom)</author>
		<pubDate>Wed, 10 Aug 2011 23:37:57 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>You should not accept any <span class="source-code">join_dt</span> that is less than a week. All spammers active or not will be deleted by that time.
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		<author>no-reply@allegro.cc (Matthew Leverton)</author>
		<pubDate>Wed, 10 Aug 2011 23:43:40 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>I found the email!</p><p>Name: 	basementalice Whaley  </p><p>Email: 	ElizabethTBeall@rediffmail.com   </p><p>now let&#39;s see inappropriate.
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		<author>no-reply@allegro.cc (Arthur Kalliokoski)</author>
		<pubDate>Wed, 10 Aug 2011 23:43:43 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><div class="quote_container"><div class="title"><a href="http://www.allegro.cc/forums/thread/608065/927825#target">Matthew Leverton</a> said:</div><div class="quote"><p>You should not accept any join_dt that is less than a week. All spammers active or not will be deleted by that time.</p></div></div><p>Not a horrible idea, but not great either. Maybe I&#39;ll add that grammar captcha <img src="http://www.allegro.cc/forums/smileys/grin.gif" alt=";D" /></p><p>append:</p><p>Actually, I think I can let them log in, but make their account a &quot;Guest&quot; or &quot;Read only&quot; account for a week. Maybe. Still don&#39;t like restricting valid users.
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		<author>no-reply@allegro.cc (Thomas Fjellstrom)</author>
		<pubDate>Wed, 10 Aug 2011 23:50:37 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>These are real people, so a CAPTCHA won&#39;t help. Even a 24 hour limit would probably be sufficient. (Time is in UTC.)</p><p>It&#39;s just that there are some people who make an account, do nothing, and come back a few days later to insert spam. But those people probably aren&#39;t the ones likely to try the wiki.
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		<author>no-reply@allegro.cc (Matthew Leverton)</author>
		<pubDate>Wed, 10 Aug 2011 23:55:34 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><div class="quote_container"><div class="title"><a href="http://www.allegro.cc/forums/thread/608065/927831#target">Matthew Leverton</a> said:</div><div class="quote"><p>These are real people, so a CAPTCHA won&#39;t help. </p></div></div><p>The grammar one may. The SEO company that&#39;s been spamming me with phone company has real problems with grammar. They are even a Canadian based company.
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		<author>no-reply@allegro.cc (Thomas Fjellstrom)</author>
		<pubDate>Wed, 10 Aug 2011 23:58:05 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><div class="quote_container"><div class="title"><a href="http://www.allegro.cc/forums/thread/608065/927813#target">CGamesPlay</a> said:</div><div class="quote"><p>
It doesn&#39;t need any of this. For the longest time <a href="http://www.codinghorror.com/blog/">Coding Horror</a> used a single CAPTCHA image, which from my own experience using similar techniques, stops approximately 95% of spam submissions.
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Who said anything about spam? This captcha is about stopping people that don&#39;t care about spelling or grammar from accessing the Internet. <img src="http://www.allegro.cc/forums/smileys/undecided.gif" alt=":-/" />
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		<author>no-reply@allegro.cc (bamccaig)</author>
		<pubDate>Thu, 11 Aug 2011 00:37:11 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><div class="quote_container"><div class="title"><a href="http://www.allegro.cc/forums/thread/608065/927816#target">Matthew Leverton</a> said:</div><div class="quote"><p> For example, of the last 100 a.cc registrations, 83 have been spammers manually registering via the help of form filling software, etc.</p></div></div><p>How do you separate the spammers from valid users?
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		<author>no-reply@allegro.cc (Myrdos)</author>
		<pubDate>Thu, 11 Aug 2011 01:58:29 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><div class="quote_container"><div class="title"><a href="http://www.allegro.cc/forums/thread/608065/927851#target">Myrdos</a> said:</div><div class="quote"><p> How do you separate the spammers from valid users?
</p></div></div><p>The patterns are obvious. The easiest-to-detect log in from an IP in India, Singapore, or the Philippines but claim they are from the USA. Then they post bbcode into their profile and leave. Those could easily be instant-banned with 100% accuracy.</p><p>To get around that, they try to create a silent account and insert the spam later. But then they find out that their accounts are being deleted automatically for lack of activity.</p><p>To get around that, they post a seemingly on-topic reply to any forum topic. But that is a sure sign of a spammer too as nobody (especially on this forum) joins out of nowhere just to reply to a topic.</p><p>So the only thing they could do to avoid detection is to actually actively participate in the community as a regular programmer would. But then once they try to insert a spam link somewhere they&#39;d be banned anyway.
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		<author>no-reply@allegro.cc (Matthew Leverton)</author>
		<pubDate>Thu, 11 Aug 2011 02:14:34 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><div class="quote_container"><div class="title"><a href="http://www.allegro.cc/forums/thread/608065/927852#target">Matthew Leverton</a> said:</div><div class="quote"><p> To get around that, they post a seemingly on-topic reply to any forum topic. But that is a sure sign of a spammer too as nobody (especially on this forum) joins out of nowhere just to reply to a topic.</p></div></div><p>Although it&#39;s not that likely that someone would just join to reply to some random topic, it&#39;s not impossible either.
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		<author>no-reply@allegro.cc (l j)</author>
		<pubDate>Thu, 11 Aug 2011 02:49:15 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>The likelihood that the person is a spammer is nearly 100% given that he never visited the site before and came from an external application. Most people come here from a specific programming related Google search and don&#39;t join until lurking around for a few weeks.</p><p>When you take that with a fake sounding name and/or a spammy business email address, it&#39;s 100% sure it&#39;s somebody who is up to no good.
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		<author>no-reply@allegro.cc (Matthew Leverton)</author>
		<pubDate>Thu, 11 Aug 2011 03:08:50 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><div class="quote_container"><div class="title">Quote:</div><div class="quote"><p>Member since: 25-01-2009 6:03 PM</p></div></div><p>
And here I was, hoping you&#39;d just joined <img src="http://www.allegro.cc/forums/smileys/grin.gif" alt=";D" />
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		<author>no-reply@allegro.cc (Bruce Perry)</author>
		<pubDate>Thu, 11 Aug 2011 03:59:47 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>So, what I&#39;m getting from this thread, is that it&#39;s still too early for me to start my spamming plans.
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		<author>no-reply@allegro.cc (Neil Black)</author>
		<pubDate>Thu, 11 Aug 2011 04:11:00 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>Well re-read the OP! <img src="http://www.allegro.cc/forums/smileys/angry.gif" alt="&gt;:(" /> It&#39;s almost too late too!
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		<author>no-reply@allegro.cc (bamccaig)</author>
		<pubDate>Thu, 11 Aug 2011 04:12:51 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>Oh sweet irony. <img src="http://www.allegro.cc/forums/smileys/cheesy.gif" alt=":D" />
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		<author>no-reply@allegro.cc (gnolam)</author>
		<pubDate>Thu, 11 Aug 2011 17:43:08 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>^This <img src="http://www.allegro.cc/forums/smileys/grin.gif" alt=";D" />
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		<author>no-reply@allegro.cc (J-Gamer)</author>
		<pubDate>Thu, 11 Aug 2011 17:45:58 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p><span class="remote-thumbnail"><span class="json">{"name":"604677","src":"\/\/djungxnpq2nug.cloudfront.net\/image\/cache\/f\/2\/f2a59a7267c150d6e50d20b0194c4788.jpg","w":477,"h":500,"tn":"\/\/djungxnpq2nug.cloudfront.net\/image\/cache\/f\/2\/f2a59a7267c150d6e50d20b0194c4788"}</span><img src="http://www.allegro.cc//djungxnpq2nug.cloudfront.net/image/cache/f/2/f2a59a7267c150d6e50d20b0194c4788-240.jpg" alt="604677" width="240" height="251" /></span>
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		<author>no-reply@allegro.cc (23yrold3yrold)</author>
		<pubDate>Thu, 11 Aug 2011 20:13:21 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><div class="quote_container"><div class="title"><a href="http://www.allegro.cc/forums/thread/608065/927914#target">gnolam</a> said:</div><div class="quote"><p>
Oh sweet irony. <img src="http://www.allegro.cc/forums/smileys/cheesy.gif" alt=":D" />
</p></div></div><p>
There&#39;s nothing wrong with that (the second &quot;too&quot; is intended). <img src="http://www.allegro.cc/forums/smileys/angry.gif" alt="&gt;:(" />
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		<author>no-reply@allegro.cc (bamccaig)</author>
		<pubDate>Thu, 11 Aug 2011 20:42:33 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><div class="quote_container"><div class="title"><a href="http://www.allegro.cc/forums/thread/608065/927927#target">bamccaig</a> said:</div><div class="quote"><p>There&#39;s nothing wrong with that (the second &quot;too&quot; is intended). <img src="http://www.allegro.cc/forums/smileys/angry.gif" alt="&gt;:(" /></p></div></div><p>
I don&#39;t think gnolam was referring to your post, because I recall that there was a spam post in between.
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		<author>no-reply@allegro.cc (J-Gamer)</author>
		<pubDate>Thu, 11 Aug 2011 20:49:17 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>Oh. <img src="http://www.allegro.cc/forums/smileys/grin.gif" alt=";D" />
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		<author>no-reply@allegro.cc (bamccaig)</author>
		<pubDate>Thu, 11 Aug 2011 21:13:15 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p>Yes, there was a spam post there.
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		<author>no-reply@allegro.cc (MiquelFire)</author>
		<pubDate>Thu, 11 Aug 2011 21:24:38 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><p><span class="remote-thumbnail"><span class="json">{"name":"604678","src":"\/\/djungxnpq2nug.cloudfront.net\/image\/cache\/4\/3\/43a2179ea5621fe9870931ed1e00b077.png","w":878,"h":304,"tn":"\/\/djungxnpq2nug.cloudfront.net\/image\/cache\/4\/3\/43a2179ea5621fe9870931ed1e00b077"}</span><img src="http://www.allegro.cc//djungxnpq2nug.cloudfront.net/image/cache/4/3/43a2179ea5621fe9870931ed1e00b077-240.jpg" alt="604678" width="240" height="83" /></span><br />From the profile of:<br /><span class="remote-thumbnail"><span class="json">{"name":"604679","src":"\/\/djungxnpq2nug.cloudfront.net\/image\/cache\/c\/d\/cd596e24c651a8896e851b3c59bd13cb.png","w":521,"h":273,"tn":"\/\/djungxnpq2nug.cloudfront.net\/image\/cache\/c\/d\/cd596e24c651a8896e851b3c59bd13cb"}</span><img src="http://www.allegro.cc//djungxnpq2nug.cloudfront.net/image/cache/c/d/cd596e24c651a8896e851b3c59bd13cb-240.jpg" alt="604679" width="240" height="125" /></span>
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		<author>no-reply@allegro.cc (gnolam)</author>
		<pubDate>Thu, 11 Aug 2011 21:55:16 +0000</pubDate>
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		<description><![CDATA[<div class="mockup v2"><div class="quote_container"><div class="title"><a href="http://www.allegro.cc/forums/thread/608065/927852#target">Matthew Leverton</a> said:</div><div class="quote"><p> But that is a sure sign of a spammer too as nobody (especially on this forum) joins out of nowhere just to reply to a topic.</p></div></div><p>Unless the thread name is Batman. <img src="http://www.allegro.cc/forums/smileys/wink.gif" alt=";)" />
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		<author>no-reply@allegro.cc (LennyLen)</author>
		<pubDate>Thu, 11 Aug 2011 22:28:09 +0000</pubDate>
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