Don't be a Dick and/or Cunt. As broad as a statement as this may be, people with enough common sense will understand this. People whitout common sense will pretend to understand this only to fall subject to this rule sooner or later. Blocking lenghts will be decided by an administrator on a case by case basis, keep in mind that demands and threats will never ever get you unblocked and that a civil conversation and keeping an open mind will be far more successfull.