Mysteries of WoW

Why is it that the people who have most to lose by being kicked from a group are so often the ones who do their utmost to get kicked?

I will not kick an inexperienced healer for telling the party, well in advance, that he doesn't know how to heal the last boss in Oculus. If we know, we can deal with that issue. (In this case, pretty easily, with Silverblue helping him out.)

I will kick the guy who mocks and belittles the healer for telling us that. I don't care how good his gear is, it's not a license to bully the newbies. (And from a selfish perspective, I want people to feel they can tell us if there's a problem, rather than trying to bluff their way through.)

And even if you do have 6100 gearscore and the Kingslayer title, the queue for DPS is still around 15 minutes...