[Mailman-Users] misleading description

David Andrews dandrews at visi.com
Sun May 4 06:38:08 CEST 2008

I have 120 lists and thousands of blind and visually impaired users, 
and if I were to implement any kind of captcha I would have a riot on 
my hands!!!

David Andrews

At 06:19 PM 5/3/2008, you wrote:
>  > On 5/3/08, Zbigniew Szalbot wrote:
>  > >              If the unsubscribe script cannot be exploited 
> remotely, then
>  > >  I do not see probing as a real threat (especially if 
> additionally secured
>  > >  by some captcha code or the like).
>Note that people seem to really want one-click unsubscription.
>CAPTCHA violates that design goal bigtime.
>Brad Knowles writes:
>  > CAPTCHAs are not secure.
>CAPTCHA-meme, die!  Die, die, die, I say!  Die-die-die-die-die!
>Anyway, what Brad said being taken as given, what seems to be the case
>is that trivial CAPTCHAs like
><!-- Guess which FAQ-o-matic uses this CAPTCHA, successfully AFAIK! -->
>Please type "CAP-ME" in the box:
><input type="password" size="32"
>        name="nobody_would_guess_im_a_captcha_cause_theres_no_image">
>give all the protection that a CAPTCHA can give.  This is somewhat
>effective, because if the 'bot doesn't expect that particular CAPTCHA,
>it will lose.  And that's the best you can do.
>What I conclude is that CAPTCHAs are a reasonable way for some low-to-
>moderate-traffic sites to shift the burden of spam-fighting to their
>users and to other sites, but that if Mailman ever implemented one,
>that would immediately make Mailman sites a target for automated
>CAPTCHA breaking.  So sites serious about using CAPTCHA to discourage
>spamming would need to implement their own, anyway.
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>5/2/2008 4:34 PM

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