This is probably also related to what happens with the senseless custom of tipping. Does anybody actually spend time evaluating the service they got? Do people

This is probably also related to what happens with the senseless custom of tipping. Does anybody actually spend time evaluating the service they got? Do people carefully adjust the tipped amount to correspond to quality? Unless the service was a real disaster (happens maybe once a year), I just give 20% all the time, because I don't even want to think about it. Same thing with Lyft or Uber, five stars and move on. And note that tipping also saw inflation. If you read old newspapers, the standard amount used to be 15%, and 10% before that. At least with stars it's capped at five.