I wish I knew how to second this properly. I have never understood why so many people think copyright is a necessity, but I have gotten so used to others thinking it necessary that my brain retreats into thinking of ways to fine tune it, when what it really needs is to disappear altogether. People wrote and painted and sang long before there was any copyright, and people still get together in garage bands and write blogs and create websites and youtube parodies without any renumeration.
I know it would eliminate the GPL, but I also believe that the GPL is only necessary in a world of copyright lawyers. The core idea behind GPL is that it is in everyone best interests to share work, such as the linux kernel, rather than hoard your own copy and struggle to keep up to date with continual merges to keep up with public changes. I have done that too often to think it a viable development method.
Thank you for reminding me again how much I detest the very idea of copyright.