Disagreeing with an act of moderation does not give you a license to attack staff or insult individual moderators. Furthermore, as the banner stated, the user in question had multiple prior infractions related to hostility. If you have an issue with a moderation decision, contact one of the Mod Captains (B-Dubs, Hecht, or Mist). If the thread continues to derail, it may be locked, and posts will be moderated.