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You could simply force users to solve complex human CAPTCHAs if they want to post. Then sybil or bot attack becomes impossible, because there is a limit to how many trucks or bicycles any one user can recognize per day. Current methods of verifying ID would still exist, for users with accessibility issues that make it hard for them to solve CAPTCHAs.


> Then sybil or bot attack becomes impossible, because there is a limit to how many trucks or bicycles any one user can recognize per day.

• But there isn't really a limit on how many trucks or bicycles my neural net can recognise per day.

• Nor is there much of a limit on how many people I can pay pennies to solve CAPTCHAs for me.




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