I agree about those as well because:
1: In my eyes 7/10 is a not bad score, not sex on a stick but not a bad score.
2: I've said this a dozen times more than I should but I feel if you REALLY want a game then you shouldn't let reviews put you off, maybe change your opinon from day 1 to rental or bargin bin not completely put you off. It pissed me off how many people who were "hyped" for the game suddenly dropped it because it got mediocre reviews. (e.g WKC)
3: 9/10 is not the end of the world, Edge and the likes aren't God, they have their reasons for doing what they do so accept all reviews with a pinch of salt but dont-
I: Pick and choose reviews to help massage your fanboyism.
II: Go overboard and assume there's a secret plot to get you to buy a crap game.
My opinion is, there's way too much emphasis on reviews and sales these days, I'm starting to forget if the so-called "gamers" are stock-holders in disguise.
Enjoy your games regardless of what some reviewer thinks, their words aren't gospel.