I dont know, a set of anonymous reviews of somebody does not sound like a measure of anything related to that person. What will these reviews really tell me?

I dont know, a set of anonymous reviews of somebody does not sound like a measure of anything related to that person. What will these reviews really tell me? None of the reviews in the profiles that were linked here seemed to provide an quantifiable metric of any sort unlike say a set of LinkedIn recommendations or StackOverflow reputaton points.