Does bitcointalk consider AI generated post here in bitcointalk as plagiarism? If yes, he's candidate for a permanent ban.
Changes to rules take time to be implemented. So far there is no rule regarding AI generated posts so those who use it are pretty much free to use it the way they like, except they are on a campaign which has local rules regarding it.
My guess is if we have more cases related to abuse of artificial intelligence, the admin will make a decision regarding its use on the forum.