Proof of work could be easily combined with this, if the wasted computational cost is deemed necessary/worthy. (At least it’s wasted CPU cost, instead of wasted human time like captcha.)
Tor has already implemented proof of work to protect onion services and from everything I can tell it has definitely helped. It’s a slight inconvenience for users but it becomes very expensive very quickly for bot farms.
Proof of work could be easily combined with this, if the wasted computational cost is deemed necessary/worthy. (At least it’s wasted CPU cost, instead of wasted human time like captcha.)
Tor has already implemented proof of work to protect onion services and from everything I can tell it has definitely helped. It’s a slight inconvenience for users but it becomes very expensive very quickly for bot farms.