You might be doing the same thing, if you think that your medical professional father would have any understanding of how an LLM works, an area in which he has no expertise.
To him, and most other people who don't know anything about the tech and how it works, it's probably just a magic intelligent box that can answer many things that he can't.
The marketing says it's this close to AGI and taking all our jobs, so that must be true!
Lemmy is good, but not enough people on there for network effect to kick in yet.
I think once the enshittification gets too bad for even the average person, people will look for alternatives, and old style forums will return.
Although with all the ID verification, those forums might end up on Tor or something.