Sometimes when I open a folder in nautilus, the contents is
shown as "0 items". More than once I've then deleted the
folder, only to think, later,"hang on, I KNOW that folder is
not empty". It appears if my desktop is lagged due to a
heavy process, there can be a substantial delay before
nautilus displays the folder contents. Before then, it
incorrectly states "0 items".
I've put this at normal, although I have reservations
because it is misleading enough to cause data loss, even if
it does not cause data loss without some human
intervention...