[greenyoda]

Nothing happens at 100, as far as I know. If you get above 500, you can downvote comments.

Someone has collected a list of undocumented features of HN: https://github.com/minimaxir/hacker-news-undocumented/blob/m...

[perczel]

This is really helpful. I am surprised — why doesn't HackerNews have a page outlining these policies themselves?