Overly vocal declarations of one's tanking abilities and penchant for threatning to quit. This sort of child-like behavior is usually found in paladin tanks, people who feel they need to make up for their class inadequacy somehow.
OMG you fucking warrior tanks think you are amazing.
nobody knows about paladin tanks, they are the best, but nobody realises it because everyone fucking loves gay ass warrior tanks.
Paladin tank syndrome = noob