Sort of related, I was fact checking some of the content on my own website that had been provided by someone who later turned out to be less than reliable.

There was one claim I was completely unable to find a source for and suspected it was an AI hallucination. Turned to chatgpt and tried to find a source with that and it provided nearly the exact same sentence and cited my website as the source thus completing the hallucination cycle.

I just deleted it all from my site and started over.