When I'm doing drag and drop from the list at right to my profiler, which happens to be towards the bottom, inevitably I accidentally pass over Rig Packs or other folders that then auto expand and shove the target of my drop down until it scrolls off the screen. I can then hover and move the mouse down until the window scrolls, but it's all very sensitive and twitchy. It makes an otherwise nice app somewhat frustrating to work with.
While the subject says disable, perhaps a better solution would be to add a checkbox to the preferences to enable or disable auto folder expand on mouse hover.