I think there is a 3rd question that begs to be asked: Are you building yourself as a skilled professional?

"Economically, you can think of a startup as a way to compress your whole working life into a few years. Instead of working at a low intensity for forty years, you work as hard as you possibly can for four." - Paul Graham http://paulgraham.com/wealth.html

When Paul Graham wrote that he was talking in the context of wealth but I think it just as easily applies to skill, knowledge, experience, network, etc.

I think there is a valid argument for frowning upon credential building but I'd be more curious to hear what HN thinks about this idea of building yourself? You could say its just as selfish as credential building but at the same time is it really bad if an accelerator ends up being primarily a talent generator for future generations of startups?