What is the point of quoting the introductory sentence of a page full of rules? If that was the only thing about a Show HN, every corporate blog post would be

What is the point of quoting the introductory sentence of a page full of rules? If that was the only thing about a Show HN, every corporate blog post would be a Show HN. They all have products you can try out after signing up. There is certainly some gray area around what constitutes a Show HN. But the link you submitted clearly is a blog post.