As regards the "half-honest" question I think t is perfectly possible to be able to accurately detail all kinds of true facts about one's life and actions, and still be deeply hidden from others as a whole person -- there is a kind of emotional dishonesty which runs deeper than the factual details of external action.So I think there are degrees of honesty to be found.
But there is probably a world of difference between those who essentially strive in the direction of honesty and those who do not.
A