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A comment on Proof of work - an unobtrusive alternative to captchas.

Re:Proof of work - an unobtrusive alternative to captchas by OliverSteenbuck on Friday May 06, 2011 @05:47AM (#2520487)
Isnt't the idea of a captcha that only a human can solve it ?

This sounds like it could just (handwaving here) be given to a bottnet for solving.

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Re:Proof of work - an unobtrusive alternative to captchas by keen on Friday May 06, 2011 @12:39PM (#2521479)
Yeah, that's the idea of CAPTCHAs. In reality they can be solved by bots, given enough computing power and several attempts.
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