[clug] Re: Using a forum system for CLUG

Paul Wayper paulway at mabula.net
Mon May 4 10:52:05 GMT 2009

Hash: SHA1

Lana Brindley wrote:
| 2009/5/4 Andrew Janke <a.janke at gmail.com>
|>> I wonder how much of a problem spam is with a forum...
|> Most seem to use some form of captcha for this. (Or in google groups
|> case, their own internal spam filtering doovie).
|>> (Says the guy with 2.4 million spam comments on his blog).
|> If you do consider a captcha, this one is a great idea.
|>   http://recaptcha.net/
|> (essentially using captcha text to digitise archived books that OCR fails
|> on).
| What an awesome concept. I had no idea that this kind of thing existed (the
| digitising books bit, not the captcha bit of course).
| Thanks for sharing onlist :)

I have a 'captcha' that is not only simple and unobtrusive but is also proven
100% effective - 0 false positives, 0 false negatives.  Its only caveat, I
suppose, is that it isn't resistant to a determined intelligent attacker but
protects merely against drive-by web form post spam.  Astute readers can find
it on the submit page of Dave's Web of Lies:


Please note that all code on the page is in Mandarin, and as such only Chinese
speakers will be able to understand the HTML.

Hope this helps,


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