Didn't see this anywhere, so here goes.
Simple idea - As far as merited comments go, when on the page for a game, there could be a link to see 'merited comments' only, for that game. This could also help people get a better guess of how the game will be before they play it. Seeing the last 5 comments of "meh", "it's alright", "boring" etc etc, don't let you know. I personally look at a few comments before I play the game or while it's loading.
In conjunction, logged in AG members could go to another's profile, and click a link to see all merits they recieved.
I believe this would encourage people a bit more to leave better comments. One could see why one player has 26 merits, and determine what constitutes a merit.