Commons Are Problematic on the Net, too!

One of the websites listed in the last class' outline is is called Creative Commons. The tagline says that it offers protection to artists and authors and provided some "voluntary copywrites." To me, this raises a big question about the level of protection that we expect for our intellectual property. Granted, some level of protection is needed, or advancements could stagnate. However, I have to wonder why there is a need to build upon the "all rights reserved" that are already protecting the products. I may not completely understand what this site is attempting to do, but, to me, I really don't feel that this is necessary.