hitting them in the wallet is the best way to get them to stop posting rubbish. (Which will make the forum better for everyone.)
From what I've seen over the years, getting rid of obvious spam makes some of the spammers switch to something that's much harder to detect.
When plagiarism got busted, they switched to a homograph attack. When that was made impossible (by theymos), they switched to word spinners. Now it's AI-spam. The main problem is: it becomes less and less obvious what's spam, and more time consuming to detect.
Then what could be the possible solution? Just let them do shit? Recently I saw people report some AI Written content that was not been removed yet. Officially they are not violating the rules yet. Plagiarism is getting more tolerance from Global Mods. I think a Perm ban is too harsh for mistakes like plagiarism, especially if it's done once or twice and done by someone who made some positive contribution. But these days, your plagiarism reporting thread got a bunch of reports where the same users are doing the same shit repeatedly, and Mods handled those reports without punishment.
Now, Come to AI Spam. It doesn't have a rule yet. I don't think reporting them has any benefits. I feel like I saw a thread from a Global Mod's alt. He was talking about plagiarism rules and punishment. Couldn't find it anymore. Aww, it seems I am going off-topic.