Keyboard Warrior Online. You wage war on the forums and battle with epic trolls. Daily quests include the "10 chars" post. Increase your post count to level up.
Achievements include : "The caps locker", "I hate WoW but continue to post about it every single day", "Post in 20 different threads Why X Is The Decline of WoW", "Post in X class is OP threads for every class except your own", "Post about WoW being too easy or too hard or even both", "Use the words Noob, Bad, Casual and L2Play all in one sentence"
I think this would be a popular game and the decline of wow.