At the very least DRM and the DMCA shouldn't prevent people from creating and distributing their own fixes where they can. Patching/debugging/decompiling/modifying should be protected.

I love the idea of source code escrow as a requirement for copyright protection. If it were up to me, a DRM free copy of every work would need to be submitted to the copyright office for full copyright protection and that agency would publish and make available every work at copyright.gov automatically the moment the copyright on that work lapsed (ideally something that should happen in less than 10 years) while the works still protected would display a countdown clock showing the time until it's released to the public domain along with a list of reachable contacts for the copyright holders so people know who to contact if they don't want to wait.