Literally just remove the first 4 words and keep the rest of the comment the same, and it's a better comment. No idea what chatgpt has to do with it.
Communication is about communicating information, sometimes a terse short and aggressive style is the most effective way. It activates neurons in a way a paragraph of polite argumentation doesn't.
More accurately in the context of the comment, its "Im gonna be an asshole to you because I think you don't have the life experience I do", which is at least, some kind of signal.
I wasn't the original responder btw.
Weird, because in my experience, that has happened to every single person I know and myself. Whether it's at the start or end of a comment is not really the point.
Most emotionally mature people would stop arguing after something like that.
Stinks, huh?
Maybe you'd prefer if we were all maximally polite drones but that's not how humans are, going back to GPs point, and I don't think it's a state than anyone truly wants either.