this topic should be locked, we already have a topic like this but i will explain.
too get a merit you have too place a comment on a game, you must explain why you hate/like the game and things that could be better or other suggestions. also there's a green arrow 'vote up' button next too your comment. IF people like the comment they will vote it up but, you don't get a merit from it it only gets the attention of moderators and they will decide if the comment is good or bad. when the comment is good they will give you a merit.
more information can be found on the site below this. http://armorgames.com/community/thread/513452/nn-guide-to-merits/page/1