Don't ever assume the personal life of anyone; you don't know how much the developer depends on the income from this game or anything else for that matter. I could imagine, but again, I could be wrong; he feels that he is letting people who support the project down when the games get leaked too early. Perhaps the solution could be to shorten the time when supporters get the game and when it gets released for free. I personally don't care to wait more time if, at the end, it will get released free anyway, but that's just me and other people feel the need to have it all right away. At the end, for the developer, it is hard to balance giving the game away and getting more players with the hope of more supporters.