This is the failure of the Reach ranking. You are offered only one type of rank unless you want to play a 4 v 4 Arena. People can defend the system or game till they are blue in the face, but the fact is it is the equivalent of the social rank from games past. Remember this too, many 5 star social generals still played Halo 3 long after reaching the rank. Why? Because the game was actually fun. There were other game type, with individual social play list, ranked play lists and your global rank to excel in. Reach, for most who tried it, held little of the real enjoyment of game play that previous titles did. Blame what you will, but when a game is really good, people don't leave it to play other games.