First...Kbin's UI is IIRC currently in its alpha state. This isn't the finished product. Secondly, the UI is setup in the manner old internet forums used to be organized, with some additional tweeks to prioritize boosted and upvoted topics. Finally, this UI may not emulate Reddit in its final upgrade because it's a different kind of social platform.
I'd just ask people to be patient. There has been a huge influx of users to kbin, and lemmy over the course of the past month and the people behind the scenes have been working tirelessly just to keep up with user/server demand.