[racket-dev] spam trac tickets

From: Eli Barzilay (eli at barzilay.org)
Date: Wed Mar 23 16:20:51 EDT 2011

Yesterday, Neil Van Dyke wrote:
> Robby Findler wrote at 03/22/2011 11:28 PM:
> > Looks like the spammers have found a way thru google's captcha thing.
> That's frustrating.  I wonder whether a simple homebrew captcha
> (e.g., varying but simple Racket expression that even beginners
> understand and can do in their head) would be effective for a while.
> This is easy for captcha-crackers to break if they look specifically
> at the Racket site, but it's not vulnerable to some spammer
> automatically detecting all the sites that are using ReCaptcha and
> then using their standard exploit for that site (machine vision,
> farms of humans).

But the obvious advantage of staying with the common captcha is that
many other sites probably suffer, which means that it will get better.

(Or the internet will be shut down...)

          ((lambda (x) (x x)) (lambda (x) (x x)))          Eli Barzilay:
                    http://barzilay.org/                   Maze is Life!

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