Ask HN: Why has HackerNews succeeded despite the rise of Reddit?

It is unusual that HackerNews is still a powerful, vibrant community despite Reddit's rise: - Every subject you can find on HackerNews is also found on Reddit: programming, entrepreneurship, academic news, etc. - HN celebrities don't participate that often, so I don't think that is the difference - Reddit has more features (esp. when combined with RES) How do you explain the success of HN despite the rise of reddit, and does this mean other reddit-style communities might succeed despite their similarity to Reddit?