Well from what I have seen from BKS they are horribad tbh.  
I mean I'm trying to be judicial in my understanding of it and have used the mute button on more than one occassion for alot of their members - hard to differentiate between them atm.
When it bothers me the most is if I see someone start team attacking, like raising weopons at team mates, attacking needlessly if they themselves were hit by a random unintentional swing from a team mate.  Bad attitude, bad tempers, they're like a problem child you just wanna lock in a closet but can't because it's illegal and someone will find out you did it - somehow, someway.
Sure some of them are good players, have some skill.  But I haven't seen many decent attitudes from them tbh.  For the most part they haunt chat with tyranical nerdrages as well as team attack alot more than I ever think is allowable - but hey, I'm not the boss.
You're right the humour is dark, I'm forcing myself to see past something that's obviously a wrong.  The rascism, it was excessive which pushes it past a joke - I know rascism isn't a joke I'm not retarded but in the right doses I find it humorous - guess I'm a villain.  
Drop the hammer.  Permaban.  Let' all be honest here.  Well, permaban is harsh.  I call for a 2 week suspension followed up by a permaban if he comes back the same or worse.
Like a boss.