Well, the comments here are not butchered into short pieces, there are no garbage tags littered in the text body, there are no nagging popups requesting to register or turn on notifications, no avatars or embedded images, there is a sensible tree style formatting of replies, and due to the sane layout you can see much more content on the same screen. And there is a great moderation, both by community and dang. I definitely don't miss Twitter :)