We used to do regular site evaluations that served some of the same goals as the Area 51 stats. Unfortunately the process was labor intensive and didn’t seem to have much of an impact so I wouldn’t argue for going back to it. (It’s also hard to imagine the company concerning itself with the idea.) But I do think there’s a need for some form of quality evaluation.
(I’m on vacation at the moment, I’m thinking this might be something I can start for my new community at College Confidential. I wonder if Codidact has considered that?)