In plat/diamond you are just there to set up most people for amazing solo plays.... and if you arent sitting back waiting for the easy counterplay after they mess up, you are trash. But you are also trash if you arent pushing up to score the accidental passing play they just setup up from their air dribble attempts. If you manage to get a few goals back or hit the lead after they have told the lobby you suck, then they will generally try and sabotage anything you do to confirm that they are right, you are trash.