Interesting thought. Though a year ago we had a company that offered a similar thing about rating players and matches, which we trialed for a few games and found a) It wasn't being used much and b) Was seperating discussion from the match in two places. So after a few games we scrapped it for good. So we definately won't be seeing any kinda of post game player ratings.
However over the past two seasons, @I_W has done polls on Player and Goal of the Month instead, which worked well. I have no idea if he plans to continue that on here, but if people want it again, I'm sure we'll be seeing it again