I'm on pages/myusername
I click Upload
I click Create New Page...
I type in a title, the folder reads http://bricksafe.com/pages/myusername/title.
I click Create
The folder is created as /pages/myusername/lastFolderIWasWorkingOn/title
So the previewed folder name is not the same as the one created.
If I want to create a top level folder, I have to make sure that on the upload page I select "/" first from the dropdown, then click Create New Page.... In this case the previewed folder name reads http://bricksafe.com/pages/myusername//title which is also confusing, because of the double slashes.