As the author: no it's not. I am in no way notified of comments on my works when someone-not-me submits a link to hackernews. I only discovered this HN thread because people pointed it out to me almost a day after the fact, so if you leave a comment on an HN thread in the expectation that the right person will magically find it: that is not how things work. If you want something improved, tell the people who need to be told, not a random person who posted an interesting link to reddit or hackernews. Your comment just gets lost and there was no value in posting it.
