So I downvoted because I wanted to signal that I'd like to read less content like that on here. I went and checked the HN guidelines on content, and here's a few points which I felt supported the downvote:
"When disagreeing, please reply to the argument instead of calling names. E.g. "That is an idiotic thing to say; 1 + 1 is 2, not 3" can be shortened to "1 + 1 is 2, not 3."
"Resist complaining about being downmodded. It never does any good, and it makes boring reading."
"Please don't bait other users by inviting them to downmod you."
And now I have contributed in uselessness to this comment thread, the cycle is complete :).