Comments which are voted down are often misunderstood. More often then not, those comments consist just of a single sentence. A few days ago I made a comment, which had 3 downvotes, however the 3 posts where I explained myself had 15 upvotes in total. I think it's great that HN has this feedback mechanism that sometimes lacks in real life (especially in non face-to-face conversations).

How is your first comment relevant? Answer that, and you'll figure out why you were down voted.