Ironically, the linked site is unusable on iPhone. The page width is twice the size of the screen AND it cannot be zoomed out. Lovely stuff, can't wait to read what the author has to say on usability of other's people work.
And I started seem to have the flame war! Here are my two cents if they make anyone feel better: First it is a recommendation from a user not lecture from a UI expert. Second as a developer I'm flattered that compared my crappy blog whose audience is me and probably one other person- its usability expectations with HN. Third your point well taken, I need to work on responsive CSS when I get to my machine later in the day. Thanks to your comments, I just fixed viewport scaling issues.
But my post is not about me. It is about an issue in HN which I thought others would be facing too.