Most of the negative comments are from Lemmy.world users, which is the instance that recieves the bulk of the Reddit crowd before the users find a more fitting instance.
Lemmy.world tends to attract people from Reddit that are too ideological to stay, but want the same thing as Reddit without the enshittification, so they go to the largest generalist instance first. Over time, some leave for more specialized instances, like Beehaw, Lemmy.ml, programming.dev, or blahaj.zone, so that leaves .world usually with newer accounts, or people who just want Reddit 2 before it went to shit.
Not saying everyone from .world is bad, of course not, but what drives users to .world over more niche instances is usually coming straight from Reddit.