For instance, one of my icon galleries only has four icons uploaded in it, each about 10kb each. But the gallery is displayed as being "40.09MB". And the "total" for all of my galleries according to its display is almost 400 MB. . .but that is not right, being as I have nowhere near that many pictures uploaded, and when looking at my "Paid Account Status" page, I'm only using 5.19% of my 50MB space, which also includes phone posts and extra userpics.
So yeah, just giving a heads up, not sure if that's happened to anyone else. . .