Profanity is not permitted on any public channel, which is a channel seen by those other than yourself and the person to whom you are speaking. If you use profanity in a private conversation and the other party asks you to stop, please respect their wishes. The difference between '@%, I'm having a bad day' and 'what is your @%$!* problem' should be obvious to everyone.
If any level of Immortal asks you to desist on a subject, or to move the subject to an appropriate channel, do so immediately. Continuing on a subject or channel after you are requested to stop may result in your character losing its access to channels through silencing. An Immortal's decision on subject matter and/or channel use should be obeyed.
Warning: Arguing with or flaming immortals on channels will get you silenced or worse, and this may extend to your other characters as well if you push the matter.
The Land of Legends provides ample avenues for complaint without resorting to public baiting and name-calling.