FujiCigarette I was actually thinking about how a separate section to a certain degree would benefit both original works and derivate works.
Assume you write FF (I don't think you do, but anyway). You drop your latest in the section for derivate works and are given a few labling options which, for rather obvious reasons, are unavailable for the rest of us. You get to properly pick a genre AND you get to state which original work yours is a derivate of.
Two weeks later a happy reader of Naruto FF is able to find your work among all other Naruto derivates AND can pick it out among the romance stories there.
FF writers get a more powerful tool and writers of original works don't get that label diluted. Win-win.