I realize right after saying that, my slight critique will be a bit ironic :D

I really like the variety of the comments, but some of them lean a bit towards being milquetoast and lack the edge that HN posters often seem to have. While there's often helpful posters who are clearly experts and offer encouragement, most HN posts will also include sharp, unnecessarily pointed critiques. There's also those comments which seem well-informed at first glance (and again, are usually negative), but which an expert would see through the jargon to see are empty of substance.

Adding a bit more of that will make the responses seem even more convincing. Again, great work!