> From: list-managers-owner@greatcircle.com
> [mailto:list-managers-owner@greatcircle.com] On Behalf Of Tom Neff
>
> Maybe one useful approach would be to distinguish between
> kinds of confirmations. When somebody joins you can offer
> them a couple of ways to confirm. If they choose a Web based
> one, like the "word in graphic" test, then they are confirmed
> 100% and enjoy full privileges.
Which is perfect, if they're not visually-impaired...
> There is also this method:
>
> JxIA0KDQo8aHRtb
> 9uXCBjb2xvXj0iI
> RybX5nPkRXTidUI
> MgSUXgSEXTVE9SW
> NlbnRXcXI+PGZvb
> wgc2FuXy1zZXJpZ
> JhdGVXbXJ0Z2FnZ
> 1heSXiZSXhcyBsb
> 9vcXBjcmVXaXQgb
> BnXyB1cCEgXC9mb
> NpemU9IjIiIGZhY
>
> What letter do you see in the above block?
None. Is this some sort of optiocal trick? Many of us can't see those.
Follow-Ups:
References:
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