Well we're already gonna cringe by people's design work (and Conker's voice anyway), seems like a good feature to for people who could make good use of it just like PS in general is a good feature for people who could make good use of it. That'd be some pretty impressive shit to implement though as a function given the power it would take and file management and storage as well as communication with a PC. But if you could put in creator made music and voicework that'd push PS from a simple content creation game to something really impressive and "NEXT GEN GAMING".