Now that you have the answer you wanted to hear, let's see if you can handle the better alternative. After all, even Scrooge saw the light...
If your media is truly well organized, your folders and files have been consistently named based on attributes of the media. If so, MC can more or less instantly extract that information and save it, properly categorized, in it's database (using the
Fill Properties from Filename command). Now, in addition to browsing your media by disk location, you can search, sort, categorize and view your media using any or all of those attributes. And, while you may not need it (because
your files are
perfectly organized), MC can more or less instantly reorganize your filing system based on any recorded attributes (using the
Rename, Move and Copy Files command).
As an MC user, the only relevant question is then, how are you going to handle media that is added to this collection? In most cases, the media will have meta data or MC will provide it. It also provides you with a broad and very powerful set of tools for managing all that data according to your own standards and requirements. That information will include all the attributes required for any filing scheme you may want to use, and MC will do the filing for you.
So it's not a matter of "eliminating the concept of folders." MC will actually help you do a much better job of maintaining order in your filing system. But, at the same time, it will free you from being a slave to that fixed, hierarchical form of organization.