This sounds like an excellent idea, particularly in relation to what I've talked about in the bitcoin beginners territory. I really like your idea of variable fees for edits and revenue sharing, although it seems like it would be incredibly difficult to determine the appropriate structure. Obviously the utility would vary from territory to territory, but I think the site as a whole would benefit. I think @ek had some good ideas, but it seems so long ago now that I can't remember the details. It was one more thing that took a back seat to the wallet madness.