2. The Thick-Skinned Gang
Allow me to nominate theymos to be part of this gang. What other forum allows users to tag Admin and keep their tagging power? Theymos cares more about what he stands for than his personal reputation.
While pondering your question, I can't actually think of another discussion forum I've been a part of that's had such an odd and arcane trust system as bitcointalk does, so I'll be damned if I can think of an answer.
But we both know how Theymos rolls. It's not exactly like he acts like the forum is beneath him, but more as if he's above all the petty nonsense that goes on here, so he's not prone to engage in personal attacks (of which I've seen many through the years). I guess you could call that thick skin but when you're the boss, criticism has a much different level of effect than it would if you were just a regular member. People here with no power at all who let attacks slide off them as if they were nothing get more respect from me than someone who's essentially unaffected in any meaningful way by jabs, insults, trolling, etc.