The former is like "hey, I had this experience, here's what it was about, what I learned and how it affected me" which is a very human experience and totally valid to share. The latter is like "I created some input, here's the output, now I want you reflect and/or act on it".
For example I've used Claude and ChatGPT to reflect and chat about life experiences and left feeling like I gained something, and sometimes I'll talk to my friends or SO about it. But I'd never share the transcript unless they asked for it.
It feels really interesting to the person who experienced it, not so much to the listener. Sometimes it can be fun to share because it gives you a glimmer of insight into how someone else's mind works, but the actual content is never really the point.
If anything they share the same hallucinatory quality - ie: hallucinations don't have essential content, which is kind of the point of communication.
With ChatGPT, it's the output of the pickled brains of millions of past internet users, staring at the prompt from your brain and free-associating. Not quite the same thing!