I've thought of just implementing a bunch of different options. I think the solution to bots is to either have some associated cost (whether monetary or effort)

I've thought of just implementing a bunch of different options. I think the solution to bots is to either have some associated cost (whether monetary or effort), or some obstacle like manual email verification. * hashcash-verification * manual email-based signup * domain-based verification * an ancap dystopia where every query costs an infinitesimal amount of cryptocurrrency * dunno what else there is, probably more creative solutions