I don’t think this particular comment deserves any downvotes (and I didn’t downvote either it or its parent), but remarking on a comment’s vote status on HN is a general faux pas.

And effectively censorship since such a comment will end up as the last child of its parent and with a text-color barely darker than the page background. Or hidden entirely if a couple people hit "flag" instead since "showdead" is opt-in.

The comment provides negative value, noise with insufficient signal. Getting such comments out of the way is exactly what downvotes are for, regardless of whether the intent was malicious.