Certainly, spammers have gone smarter and are trying ways to evade being spotted, it doesn't take much, just a simple Google Search, and numerous results of humanizers and re-writing software will appear.
If we keep making it harder for the AI spammers to not get caught, it will soon take less time to just write a post from scratch than it does to type a prompt into ChatGPT and "humanize" the text to make it undetectable. The main reason people use AI for posts (or plagiarize) is because they are lazy. So if its no longer time efficient, they might stop doing it.