It makes me want to revisit The Web Of Trust[1], and apps like Keybase where users have a cryptographically verified social graph comprised entirely of people who were verified by another human that knows them. That whole idea goes directly against anonymity though, so maybe that will become a more pronounced way to split the internet: verifiable human identities, and anonymous bots and humans.
This is a solution against botnets, but not against humans who use AI to enhance/write their comments for them, like the ancestral poster was accused of doing.
1. https://en.wikipedia.org/wiki/Web_of_trust