I am not sure how is "user score" working there. I vote for one exchange, but there is no change and my vote is not counted. Also, I can vote unlimited time to one exchange so if all of them counted, it's easy to manipulate with that rating.
I find some of the high-risk exchanges on your list, for example, p2pb2b, sistemkoin etc... All of them had a 3.7-3.8 user rating, which may sound tolerable to a beginner. can ignore the many problems they have and the difficulties in working with them. I guess you don’t want to be an intermediary in their dubious business.