It's hard to argue with the systematic dismissal of highly rated reviews for non-advertising entities and the dismissal of low rated reviews for advertising entities. Just because it hasn't been proven in court there are more than enough stories about the extortion business model they run. I am sure they will get their day eventually. It's hard to prove when it's all under a mysterious guise, but just wait until they get a whistleblower, wikileaks or something similar.