What if you want to know how the guy felt about the game? if your considering voting a comment up then this is a nessacity. Above every Game comment is the person's rating of the game, that way will cut done on comments that just say: 4/10 8/10 and so on, that way we get a better idea of why the games is rated that way.
I say all the time my rating about the game. But if game is so worst sometimes o dpnt put rating but usually i put my rating even if its very bad game.