[ronsor]

If a bot claims to be from an AI company, but isn't from the AI company's IP range, then it's lying and its activity is plain abuse. In that case, you shouldn't serve them a proof of work system; you should block them entirely.

[thunderfork]

Blocking abusive actors can be very non-trivial. The proof-of-work system mitigates the amount of effort that needs to be spent identifying and blocking bad actors.