When you both get into a court of law Don can claim that he was only acting in concert with the general nature of the board approved by Agoracom and that it had a very long history of contention between posters. You in turn had made a choice to enter this hot bed of strong language and you continued to stay involved. Since your livelihood does not require you to be placed in this forum you could simply choose to leave when the going got too hot for you.