I agree- but, my issue is- if someon posts a game, and knows the criteria for success is to get as many five star reviews as possible, then the natural progression is that they'll try to get all their friends, all their family, all their work colleagues, anyone who owes them a favour etc. etc. to give them a five star review- regardless of whether they've even played the game.
Essentially, it becomes a popularity contest, like Americans selling cookies on behalf of their children, and the quality and effort put into the game becomes completely irrelevant.