I whrite a post for explain the former players malice in not private room. Why you create a open room to insult new players who want to learn. I think the game needs new players, and the behavior is not suitable to be welcomed.
Game is rough to learn, especially with no tutorial. If you can, try and join larger rooms while you're starting out, preferably 6v6, but 4v4+ also works.
It's in touchball that the suffering of new players comes to life; no matter the mode, I believe respect should be there to welcome them, not drive them away.