Quoting Relata Refero refero.relata@gmail.com:
I would think the whole point of banning someone is to say that we no longer believe, as a community, that this person can contribute effectively to the project. Given that, it means that we are in effect assuming that any contribution made by such a user is not made in good faith.
No, there are people who seem to be acting in good faith but just really don't work well with others or can't get over their own POV. We should confuse bad faith (i.e. Judd Bagley) with good faith editors who just don't work well with other people at all.