I'm a min-maxing power gamer by nature, and while I would never spend that kind of time to "finish" the game in 3 days, the motivation behind it isn't completely lost on me.

However, I too find people who spend all kinds of time to setup a run like that and then complain about how "troubling" the lack of end-game content is to be very annoying. When I PL myself out of something to do in the future, I never blame anybody but myself.