^ It's called Model Collapse and it's so bad you need a degree to fully grasp just how dire the situation is. (Search arxiv for that term and learn many new ways to say "we're so screwed"). However, the tragedy of the commons really is old enough to have become a comedy by now, isn't it~~~
Anyway, my above-median-but-still-somewhat-layperson take is that poisoning like this is not just too little, too late, but also ineffective simply by necessarily being based on the previous generation; it's a cat-and-mouse game in favour of the tormentum nexus.