Just putting the competitions and credit RG's aside for a minute.. The fun of any game, if you're a gamer, is the leveling up and acquiring new equipment aspect of it. I can imagine, not being there myself, once you get to a point in this game where it takes you forever to level up and gain a new tier.. or already have all the best equipment, that it takes a lot of the fun out of it. That happens with every game.
The ones that are beating up on honest people in the tourneys are just worthless pieces of shite.. no excuse for that. Also, not a lot can be done about it.