I don't read HN much, but I thought that in theory that's something you would expect of reddit and not HN? Isn't HN supposed to be above that kind of stuff?
Which is odd because starting from the blog you get the author's take on it AND a link to the code. It's not like you just get one or the other. I would think HN would (should?) be more interested in the whole story and not just a link to a codebase whenever possible.