Yes. The discussion on HN is always engaging and there's not much temptation or incentive to go off on a dumb trollish tangent as has been the case in other corners of the Internet. It's always nice to talk to people off of HN that I've met here, too.

edit: somewhat ironically, HN is a place where I'm least tempted to look up a user's bio during a discussion. Someone has to say something extremely outrageous/amazing before I click on their username and commit the "argument from authority" fallacy. Otherwise, I like to read the discussion without having any preconception of who the poster is.