I hate when people rage at others for being n00b. If you're so good, then carry the team to win - or coach them. I was in a team this weekend. I was playing my first mirana, fsking compendium challenges, and someone else was playing their first bounty hunter. We were up against a team with PA, Jugg and legion. I thought it was GG when it started, but our one team member was doing a brilliant job laying out strats as we went along, and we ended up owning that game.
I get that something like that only works when your team listens and doesn't do stupid ****, but then you're not calling them out for being n00b, you're calling them out for being stupid.