> I try to be mindful of what I share with ChatGPT, but even then, asking it to describe my family produced a response that was unsettling in its accuracy and depth.

> Worse, after attempting to delete all chats and disable memory, I noticed that some information still seemed to persist.

Maybe I'm missing something, but why wouldn't that be expected? The chat history isn't their only source of information - these models are trained on scraped public data. Unless there's zero information about you and your family on the public internet (in which case - bravo!), I would expect even a "fresh" LLM to have some information even without you giving it any.