The morality of his actions aside, it's a little disappointing because it's not as if he lived without human contact for all that time, there were always people in the visible distance but he just chose not to engage with them. There's recluses in every neighborhood who live like that. I think I was expecting more of a Robinson Crusoe/Castaway type situation.
I can see that. He's not Crusoe, but I still found his story interesting because this is someone I usually don't get a chance to talk to (as most recluses are).
And maybe it's my age and experience, but 25-27 years is a really impressive time span to be focused on doing one thing.
I would like to have learned more about how he feels about how the world has changed, he's like Rip Van Winkle or a time traveler in that respect. But most likely as a person who would voluntarily isolate himself from society in the first place, he probably doesn't care about the world.