Parokki on 23 November 2007
They don't count all reviews, just "important" ones. The point with their system is that the different biases on different sites even each other out mostly, and the average score will be comparable with other games.
Now if you think the entire internet is against your console of choice, then you can just look at the Gameranking/Metacritic score and give them +5 in your head or whatever.
It's not perfect, but I prefer it to blindly following a single site just because they keep giving scores that I agree with.
