The panel that hosts my lists is always slightly too small. This means that I always have to scroll it to see the bottom part. Even if I strip out all of the other panels below it, it's never sized properly.
Resizing the window / changing the zoom level doesn't help. It's always just a little too short.
I think that the lists panel should resize vertically, so as to avoid making the user scroll every time.
I get that keeping the layout as simple as possible has major benefits re: cross-platform & cross-browser, for both the users and the developers, but this seems like an easy issue to fix (says the guy who has no idea how to fix it).