Both you and AC articulated what I was starting to *feel* regarding beta. I have so many users who rebel against upgrades just because they're different; I just wanted some good reasons why the beta sucks.
As I use it just a little bit, the UI was obviously designed by blind monkeys, or perhaps just committee. I have to scroll and scroll and scroll, and yet there is so much wasted space around comments. Add to that the fact that replies don't load automatically, and I have to populate the reply subject. I see nothing good about this "upgrade."