A critic who thought the Frick Collection “sucked” would not have a job. Yelp’s reviews are infinitely more democratic, written by anyone who cares to write them. That includes not a few masochists who hate museums and go anyway. There might be something to that. If a certain percentage of Yelpers find LACMA or the Frick boorrriinnnnggg, it might be worth knowing—to others who are thinking of going and worry they might be bored stiff. Serious critics almost never address that audience or that concern.