As time goes on, we should be simplifying laws, not creating more. The reductionist view is that content should be freely available as long as the IP isn't being developed/marketed still. And in order to prevent practices like Disney's vaulting we need a developed IP rotation of every X years to prevent IP hoarding. At it's root copyright law is rooted in greed, after you are done with the initial release, it just becomes part of everyone's culture.