do agree this sort of thing is terribly frustrating, but I think you may be taking your comments a bit far ... lol.
Seriously, if he really cared so much about getting hack of the month, then chances are he would still be around to gloat about about that status. It's probably just a case of someone moving on or not having as much time.
Unfortunately, people who develop these sorts of complicated/great hacks don't owe anybody anything. We should be greatful for what they have done.
For bigger hacks, it does make things very complicated though, as different people want different additions done to the hack. It doesn't quite make sense to discuss it in the same topic as the original creator will probably never add those features. But at the same time, it doesn't make sense to have other threads open, as it would split the hack into many different paths like one new thread supporting multiple garage types, and another thread fixing a potential bug. This would lead to one thread with the new feature, but without the bug fix, and one thread with the bug fixed, but without the new feature. Shouldn't be a problem at the start, but as things develop and more paths stem out of the original, it would mean significant wasted time and energy to incorporate everything!
Maybe a solution is a new forum of some sort, which would be a 'modification of modifications' forum ??? lol