What's the value added proposition for your users? User names DO matter to some extent on HN, and why would anybody read on your site rather than the original?

What's the value added proposition for your users? User names DO matter to some extent on HN, and why would anybody read on your site rather than the original? What I COULD see as a useful, ethical, and legal service would be something akin to LWN, i.e. you publish LINKS to threads and to particularly salient comments, and add an editorial writeup of the discussion.