This is Ai poisoning. Blocking it you just make it not learn. Feeding it bullshit poisons its knowledge making it hallucinate.
I also wonder how Ai crawlers know what wasn't already generated by Ai, potentially "inbreeding" knowledge as I call it with Ai hallucinations of the past.
When whole Ai craze began, everything online was human made basically. Not anymore now. It'll just get worse if you ask me.