EXACTLY!
Do you get it now?
If one person can disrupt this group then someone else can disrupt it more. It makes no difference what one does or says. When he is not here, even though there is no love loss among a number of people who normaly post here, everyone tolerates past each other an past offenses are put aside, and a social contract endures.
In a real life situation, the trouble maker is ejected from a group. He was ejected from an Aviation group that he had plagued. But for years Bass has used the uniqueness of this kind of forum where he can count on the lethargy of too many participants to push him out. It could be done, but for some unknown (to me) reason, it isn't.
As long as the rules of social contract are not followed by one ........ then there are no boundaries. Any thing goes ...... and it will.