I've never ever ever seen a player with a good attitude and performance be kicked from a dungeon. That being said I'm sure it happens occasionally. That leaves 2 options:
- You manage to group up with a disproportionate amount of douches, or
- The problem lies with your performance or attitude
I can't judge, I wasn't there. What you see is what happens when you interact with people. People caused the kick, not the game. If you think titan is a magic bullet and the community will be free of douches then you are being pretty optimistic.