Even if the rules that apply are so, they do make a fair warning that entering as a mentor you should have some dignity and respect, course may not have been mentors talking, Balmung NN seems to be doing really well, having people pop in to in progress if a player bails, giving advice on rotations. There is occaisional friendly off topic, but I havent seen anything awful(yet) I would say that if things get too out of hand, or inappropriate that it shouldnt really be smiled upon, maybe mentioning to cool it, or reminding them. If it is really bad and people dont calm it, may have to report them as others have suggested