The new marketing is apparently name-dropping your own site on HN, too.
Just read their About page, can't see how it's significantly different to Facebook or Twitter. It's still a proprietary network with all the Balkanization and opportunities for abuse that implies, isn't it?
I like it when I can get my favourite username (edward). I signed up. Now what?
2630 lines of code to run Sublevel or posted by users? A small codebase is interesting for nerds. And yea it is snappy.