Strict moderation is the reason HN is the only reasonable discussion forum remaining on the internet. I wish good moderation was a skill that more people learned - would you ever be interested in writing a guide or teaching a class on moderation?
One of the other forums I frequent would be chock full of pricks by HN standards. They are known for being jerks on other forums that cover the same interest. It's still a very good community as long as you don't take everything personally.