I don't appreciate this characterisation.
A lot of the conflict in BAR comes from people having different expectations about the multiplayer game experience.
I'm not going to deny BAR has salty veterans and a meta. It's a high complexity 16 player game that can go for over an hour. It doesn't really have a ranked autoqueue and there's going to be different expectations about gameplay in different lobbies. While the community and the devs can help with this, new users should be proactive in finding the right lobby or finding a way to play that's fun for the rest of the people in the lobby.
Arguing with an established lobby over role picks or meta isn't worthwhile. aetherspawn can make our find a lobby with random role pick setting, named 'friendly learning noob lobby' and they're set. I see these reasonably often. Complaining about the competative meta players in the their lobbies isn't really productive.