This was posted earlier, first by the author, and then by someone else. It was a long time ago so I thought it may be worth a look again. [1][2]
I like the way the post ends.
> My conclusion is that if I want more points there's no point trying to game Hacker News. It doesn't really matter when I submit a story or write a comment. It's content that's king. That's good news for Hacker News because it indicates that what matters there is content and not game playing.