You realize that many of the smaller websites that review massive games like Mass Effect 2 (get it?) don't review less high profile games like FM2 and Geometry Wars right?
And you realize that the weighting is done to an EXTREMELY limited extent, generally just to normalize results soon after a review site has hit the Metacritic listings?
I assume by "know how Metascores work" you mean that I accept the notion that as more reviews are added the scores inevitably come down? If that is what you mean, then you have already disproven your own point. Mass Effect 2 has been on 96 since it had half that number of reviews. In fact, past a critical mass of reviews (normally around forty), I don't think it is fair to expect a general drop off with any increase of review numbers in anything like general terms.
starcraft - Playing Games = FUN, Talking about Games = SERIOUS
Essay Pro