I couldn't agree more and in fact I have written about this problem a couple of times. I'm definitely not an advocate for doing it and it beggars belief that people get that far enmeshed. For me, it was an interesting experiment but I'd never be idiotic enough to allow it to be my best buddy. Sometimes though, it's been more useful for clarifying things than talking about it IRL. Btw, I hyperlinked above to the psychosis thing... The suicide stuff is bonkers.
You know what it reminds me of a little is this 80s book I think called the Dice Man, where he allowed every aspect of his life to be governed by dice throws. To hang your entire fate on something external to you. Bonkers.
It's nice to expetiment with AI indeed. But you have to use it responsibly. As you already stated 👍