I imagine it could work that way.
What would be needed would be some sort of hub where things like scenes with the music score removed or a special effects elements from a fan film could directed from and a board (like this one or even this one) where people could request specific items to be uploaded to it.
Say for example you really wanted a new AT-ST shot for a fan edit and saw just the thing in a fan film you could look it up on the index and if wasn't there already request it from the person who made it.
It would save a lot of time ripping, cleaning and seperating elements that may have already been done exeptionally well by someone else. There have been a lot of projects that have been abandoned and it would also be a great way of not letting all that hard work go to waste.
It just struck me as a idea that could be useful but I haven't the foggiest idea how to implement it.
Which is why I'm hoping for more replies from people like yourself Master Qui-Gon and many thanks for noticing and taking time to respond to my initial post.