I just realized recently that I could hide the left or top bars by clicking the arrows. I thought it was strange that the resize arrows disappeared over those arrows... but I never clicked there!
Anyway, when viewing a smartlist, that option isn't there. Users are forced to keep the top bar. Any possibility that hiding that could be added? It just seems like a missing feature that has no merit. I don't see any reason for that bar to be required to be shown. It helps on lower resolution monitors.