Why game reviews get a lot of flak

Game reviews have been getting a lot of criticism nowadays. Several of the issues raised are valid: that the ratings seem too high, that publishers wield influence in the reviews, and certain genres like MMOs aren’t fit for a definitive review. As the popularity of blogs and user-generated content increase, expect this sentiment—especially among core audiences who have access to this medium—to be more prevalent.
Interestingly, game reviewers themselves offer no defense to the accusations being hurled against them. Is this a sign of guilt? Naysayers would be quick to agree. Let me just say this: don’t flatter yourselves.