That was literally the same thought that crossed my mind. I agree wholeheartedly, accusing everything and everyone of being AI is getting old fast. Part of me is happy that the skepticism takes hold quickly, but I don't think it's necessary for everyone to demonstrate that they are a good skeptic.
(and I suspect that plenty of people will remain credulous anyway, AI slop is going to be rough to deal with for the foreseeable future).
Spammers use AI comments to build reputation on a fleet of accounts for upvoting purposes.
That may or may not be what's happening with this account, but it's worth flagging accounts that generate a lot of questionable comments. If you look at that account's post history there's a lot of familiar LLM patterns and repeated post fragments.
(and I suspect that plenty of people will remain credulous anyway, AI slop is going to be rough to deal with for the foreseeable future).