IMO we need a mass-adopted digital signature solution using biometric identifiers such that publishing an article, or even a comment, can be signed by and only by a biological human.
One's identity would need verified concurrent with creation of a text. I am not really satisfied with the idea of a specialized word processor or input device that does biometric validation, I'd rather have a specific, standardized protocol. I wonder if this is already deemed impossible, or if someone is working on the problem.
It really is an interesting problem to think about. The other commenter pointed out you could just sign an AI text - I see all the issues, but my gut feeling tells me there is an elegant solution somewhere.