> Sometimes a bullshitter consistently peddles untruths, but is unaware of it, and so isn't a liar, just mistaken.

No, i don't buy this. The world has a way of forcing people to face realities. It is just that they willfully turn themselves away from the cold hard fact and rely on "enablers" in the society to look the other way and help them "save face". Social norms and Diplomacy also play into this. As long as it is contained and doesn't have major repercussions we can overlook it. But when it becomes chronic and leads to self-harm we should speak up.