The obvious counterpoint is that many people were and are miserable commuting into a workplace and then putting in the grind. It's actually humorous that most tech "social media" like HN, Reddit, Digg, and so on were much busier back when most of us were in offices, because we all would bide our days doing anything but work. You could see the bursts as the primary demographic timezones started their "work" days.

Not everyone, of course: I had a peer once who absolutely couldn't stand his family, and he would be at the office before everyone, staying until late at night. Volunteered on weekends too. Almost all of his contributions were the sort of thing that could have been easily automated, but he was happy just wiling hours away. Mileage varies and everyone's situation is unique.

Then of course there's the change element itself being a temporary boost. Turn the lights down and productivity increases. Turn them up and productivity increases. Return them to the normal and productivity increases. Having a varied life is essential. HN's history is littered by posts of people who changed some element of their life and This Changes Everything...at least during the initial period. Then it fades and they abandon it.

None of this is to diminish your personal experience that you obviously enjoy.