There is discussion but the userbase's interests arent super wide so at the moment its techy and politicsy. Which is fine at least we arent following reddit which started out with racists, atheiests and child porn.
I've recently been checking out reddit to see discussion on a few topics not covered here, MMA and beyond all reason. I'm shocked by how low quality the comments are. I can open a 900 comment thread and not see a single comment that discusses the thread topic or discusses anything.