b.) Another way to look at it is, "do you think it would be the top comment if the author didn't solicit feedback and thoughtfully edit their comment?" To which I would say, "who cares? Editing is fair play. Let's talk about our actual points of disagreement."
c.) To be frank I think this response from you is very telling. I haven't seen you engage at all with the substance of the comment. But you press very hard on this "AI" angle. The commenter has now shown us their pre-AI draft, and it's much the same - I think if you had a good-faith concern that it was "manipulated," that would satisfy you. Since it hasn't, I infer that your concern is either puritanical ("no AI must ever be used in any way") or that you are attacking the style of the comment when your real issue is it's substance.