I saw that thread, it was like basically day one of Vegas being released and many people jumped on saying it was tried back with Morrowind and Oblivion, but it Bethesda said it was illegal, blah blah. This time it wouldn't use copyrighted materials from Fo3, but I think it's just a gray area that this site probably doesn't want to cross because of legal issues. EVEN if it doesn't use copyrighted material, Bethesda will find some legal mumbo jumbo and get the files to be pulled.