Quote from: thrashaholic on September 27, 2010, 12:20:02 AM
I also don’t see how bitcoin could be used as a captcha, those are used to make sure there’s a human on the other end and not a spam bot…you could easily automate the payments. For this niche, it’s paying for high bandwidth, concurrent downloads of pirated content; it just won’t work otherwise IMO.
Bitcoin can’t prove that someone is human, but requiring a very small payment for each “dangerous” action is perfect for preventing abuse.