When a person continually throws insults at someone that is not appreciated by anyone and you're going to have to stop. I know some of the jokes are pretty obscene but they are usually towards people who are pretty vulgar and they just bring on themselves.
Even in these situations continually throwing crap at them and then increasing the crap by dragging in their relations and then throwing crap at them too shouldn't be done. (<< Pretty professional sentence huh?)
An incident occurred on IRC and they will be suspended from the board and IRC for 2 weeks. They will be warned to 90% and on next offense of crudeness banned.
But remember let's have some fun and make some friends!