I think in general people know how to filter out the "Karens". Also I find that restaurants are actually overrated in general. People are more likely to give a 5 star rating to an average restaurant than vice versa. People at least me try to filter out the person that complains about petty stuff vs the real problems. And I also realize when places first open they are working the kinks out.

But more often than not I go to a place that is rated very good but is actually not that good. And usually the bad rated places are indeed bad.