I consider humor here to be mostly unwanted noise. Most of the time IMHO, commentators' attempts at witticism reduce to just groping around for self esteem boosts and/or goading one another into flamewars. Having been at /. for many years, I've really come to appreciate and miss the (+X, Funny) header, it saved me a lot of time when screening comments. I came to hackernews for knowledge, not users' forced online group therapy sessions.