I don't know, man. Your arguments in this polite discussion seem to be based on things about the dev that you're assuming and/or fabricating. Also while I concede that the author is at liberty to do whatever he wants with his work, that doesn't mean that he isn't dead wrong in his handling of it.
Many coders have commented on how outdated/redundant/whatever else the coding for this game is. By now that is beyond dispute. However, while we can only assume the dev's own reasons for this (which is why I'm not openly complaining about any of them, merely remarking on how stunted the development of this game remains), at least he hasn't done anything obvious to make us think he's just stalling for money, or not hiring anyone to keep all the money, etc.
Guy could probably be just one stubborn bastard, let's hope not because that'll hurt him in the long run.