Maybe this is a little too simple, but I simply block any non email fields
from containing an "@" or "http://"; or "www."

On Nov 16, 2007 3:57 PM, Ben Doom <[EMAIL PROTECTED]> wrote:

> Which is more or less what I meant by "variant".
>
> --Ben Doom
>
> Larry Lyons wrote:
> >> Always use CAPTCHA or a variant when possible.
> >> Check the referrer.
> >> nofollow links and moderate, or nofollow unmoderated links.
> >>
> >>
> >> --Ben Doom
> >
> > Unfortunately most captchas are not accessible, no text reader can work
> with them. One idea is to ask for the nth last word in this sentance (eg,
> What is the Fifth last word in this sentance? answer last). While not
> foolproof, its far more likely that a person can answer the question
> correctly than a bot.
> >
> > regards,
> >
> > larry
> >
> >
>
> 

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