Based on several cases that I saw in that "report plagiarism" thread where members got banned and one even nuked (iirc you reported that nuked guy), I think that forum staff already decided how to deal with ChatGPT users and took the stance on that. Tricky part is to actually prove beyond reasonable doubt that someone used the bot and it will take some time before tools get reliable enough.
I think the moderators haven't decided how to deal with post generated by ChatGPT, but it's just because the content generated by ChatGPT has been exposed if some part was took from the other article. As been mentioned by @mprep here, so my assumptions if someone have created a post generated by ChatGPT and it's really looks like created by human, it's fine since no one able to investigate it.
If an AI is able to consistently create content that doesn't break any of the forum's rules (good quality, on-topic, not just a padded word salad, no plagiarism, etc, etc),
I, for one, welcome our new machine overlords. Otherwise, content that violates the rules, AI or human produced, can already be dealt with with our current rules and policies in mind.