3 ms·
Because if the computations you are doing are valuable spammers would use the results of those computations to offset the cost. It's basically the same reason
by thexa4 7y ago
Because if the computations you are doing are valuable spammers would use the results of those computations to offset the cost.
It's basically the same reason why cryptocurrencies cannot do meaningful work or it would be possible to do 'free' 51% attacks.
- ocdtrekkie 7y agoThe value from the computations would go to wehatecaptchas, not to the person completing the captcha.
- aabbcc1241 7y agoThe person completing the captcha is rewarded to access the service provided by the website
- bluesign 7y agoIt is not practical, but your comment is not 100% true. They can for example act like mining pool. They can let you mine X coin, but can accept less difficulty to bypass captcha. They may/may not win from spammers, but from regular users they can for sure.