Agree. Self voting is a great challenge brought to us by HF19. We can ask people to behave unselfish, but it will have a little effect, becouse system incentivize selfishness more. Rather we shoul get back to non-linear reward curve (but not quadratic one) for that we should get some kind of proposal and vote for wittnesses that agree with it. We have ability to change system from its core, why don't go that way?