Most forums I have joined, the mods do not ban nearly as much as they delete offtopic posts. Seemed like a good approach -does not find any major fault, just removes whatever is not somewhere around the thread topic. Personal tiffs could be handled by PM. Nobody cares, when a couple posters get into a dispute and start yelling slander and backstabbing. Nobody cares who is Right or Justified or the Holder of Truth, the bulk of members just want the pages cleared of grievance wars.
We could just call this thread Politics and Ideology, so it is nice and broad and covers what everyone is posting.