The trouble is what the LLMs do is effectively read a lot of articles and then produce a summary. What human writers do is quite similar - read a lot of stuff and then write their own article. It's quite hard to block what people have usually done because it's done by an LLM rather than a human. I mean even if you want to ban LLMs, if an article goes up how can you tell if it's 100% written by a human or the human used an LLM?