He raised some very valid points though: requiring an account, no activity, no real benefit offered by real-time as things stand on the website.

Edit: To add my own - Doesn't work without Javascript, information density of both content and comments is far too low, and, flatly, Why? What benefit does it offer over Reddit? What role does it fill that Reddit isn't presently filling? Because for me, things that Reddit does terribly includes iffy moderation, witty snark being upvoted more than sensible comments, and their abysmal search. HN, for instance, is great with all of these things, so I'm on here a lot.