I mean impartial in the sense that the adjudicators (judge, jury, arbiters, moderators, whomever) are not beholden to the publisher. So a third party. Like our court system is supposed to be.
IMHO, there's not enough daylight between ombudspersons and their paymasters.
I have no fixed opinion for standards of civility. I'm just trying to capture the notion that some dialog, rhetoric is out of bounds, as determined by the intended audience (context).