Also, I noticed that GPTZero now has this feature of detecting "AI edited" text (written by human and edited by AI):

This is kind of interesting. I say for now we also report these posts, because most posts written this way are already borderline spam & using AI to fix them won't make them not spam..
Yeah, interesting. Although I understand that you propose to report them whenever the human creation result is less than 30%, which would be consistent with the OP.