As far as I know using Artificial intelligence to generate content and then post it here is not explicitly against the rules, some users believe it is some kind of plagiarism, while other disagree.
It fits perfectly the definition of plagiarism if you are hiding the fact that you have used AI to create the post. And that's what people will do, either to get merits, sound more knowledgeable, or both. If nutildah created that poll he mentioned, I am sure that a big majority would vote for non-credited AI posts being plagiarism. But a different poll would be more interesting if it had the question,
should AI-written posts be against forum rules and discouraged?