Comment on Ask HN: How does Threadless prevent frauds?Comments−stephengillie14yThey don't require you to login before voting?Many sites with voting or upvoting require login specifically to prevent frauds.−cannibal14yIt would be easy to write a bot that signs up automatically through proxies. Even a security image wouldn't stop it— crack the easy ones, seamlessly outsource the hard ones to Mechanical Turk through their API.−stephengillie14ySo that's already happened here?
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They don't require you to login before voting?
Many sites with voting or upvoting require login specifically to prevent frauds.
It would be easy to write a bot that signs up automatically through proxies. Even a security image wouldn't stop it— crack the easy ones, seamlessly outsource the hard ones to Mechanical Turk through their API.
So that's already happened here?