Gabe from Penny Arcade brings up an interesting point when he
reviews a review. It sounds like the reviewer he's talking about didn't even play the game past the tutorial, and has a suggestion:
I’m not saying reviewers should post their cards along with a review but it might be helpful.
I'd not really thought about that before, but it's an incredibly good idea. Especially in this age where companies are paying people to write positive stuff on random boards about their products.