they are 100% implying the poster is astroturfing,

easier to accuse someone of astroturfing than accept that different people can have different opinions. especially an opinion as world-shaking as not minding ai overviews.

this sort of accusation is becoming pretty common, and eventually going to ensure that the only new users actually are bots, because any potentially new humans that want to sign up are going to get fed up with the llm/astroturfing accusations.