Now no matter where you end up on Sublevel, you will see a neatly organized conversation view. As seen on #26587 or #26425 and many more places.
The reverse-chronological reply layout is extraordinarily confusing.
What's the confusing part? I rather try to solve its issues than go back to the way it was before.
Our languages (and as far as I know, every language) present dialogue from top to bottom, left to right, or right to left when written. So when I dive deeper into a thread, I expect the newly visible information to be under what I just clicked on. The way it is presented here seems like a compromise to keep the text field at the top of the screen at all times.