Of course if the reviews you saw were only from people whose prior reviews you agreed with or who posted reviews which matched up with the reviews you yourself posted, then the system just wouldn't be game-able. But that's involve getting users actively involved in writing reviews as well as actively agreeing with the views of others. But when it comes down to it, until you have a review system that will tell me that the Super Bowl is garbage and not worth watching because it knows my tastes and doesn't give a shit about what other people that are nothing like me think, your review system is a piece of garbage. Of course it's gamed. It's trash, and it's not going to somehow be magically not-trash even if people don't actively seek to game it.