You can blame the ty Cowboy fans for this. Note I'm not calling all Cowboy fans here ty. There are some good ones who don't act like ass clowns. But for every one good Cowboy fan, you get 10 bad ones like that dumb SpermonyourFace, badfish22, kamikaze_player, etc. They are the ones who perpetrate this bandwagon nonsense, since the only smack they can lay on people is to accuse them of bandwagoning.
I will continue to bash the out of anyone who decides that it's cool to not be a fan until their team is winning or clinched a playoff spot though.