When I hear "ChatGPT says..." on some topic at work, I interpret that as "Let me google that for you, only I neither care nor respect you enough to bother confirming that that answer is correct."
It's a huge asterisk to avoid stating something as a fact, but indicates something that could/should be explored further.
(This would be nonsense if they sent me an email or wrote an issue up this way or something, but in an ad-hoc conversation it makes sense to me)
I think this is different than on HN or other message boards, it's not really used by people to hedge here, if they don't actually personally believe something to be the case (or have a question to ask) why are they posting anyway? No value there.
Every action, every button click, basically every input is sent to the server, and the changed dom is sent back to the client. And we're all just supposed to act like this isn't absolutely insane.
Server side rendering has been with us since the beginning, and it still works great.
Client side page manipulation has its place in the world, but there's nothing wrong with the server sending page fragments, especially when you can work with a nice tech stack on the backend to generate it.