HN can't have the qualities "relevant" or "useful." Those words describe individual and subjective judgments of the site's content. Since HN consists of an ever-growing pile of loosely-related articles and links, I don't think you can make meaningful judgments about the site as a whole.
I find enough content on HN that seems relevant or useful to me, so I continue scanning through it. Based on the frequency of posts and lively comment threads I think many other people also find the site relevant and useful, to them.
I find enough content on HN that seems relevant or useful to me, so I continue scanning through it. Based on the frequency of posts and lively comment threads I think many other people also find the site relevant and useful, to them.