Doesn't DCMA kind of help here? If you distribute the content and the rights owner does not care, there's nobody to file the takedown notice. Of course even if

Doesn't DCMA kind of help here? If you distribute the content and the rights owner does not care, there's nobody to file the takedown notice. Of course even if it worked this way, this only solves some distribution issues. You still couldn't use the content for other purposes.