Why Creative Commons uses CC0 - Creative Commons

"Creative Commons dedicates the text of our licenses and other legal tools, as well as the text of our Commons deeds, to the public domain using the CC0 Public Domain Dedication. While that doesn’t mean that anything and everything is allowed by those choosing to reuse these materials (as explained below), we believe that copyright isn’t a good fit for every creative work, and we don’t think it is right to leverage it as a stick in these instances. CC has never asserted copyright in the text of our licenses or other legal tools. We made our policy clearer a few years ago by specifically declaring they are released under CC0. The text of the licenses, public domain tools, and license deeds we publish are all unrestricted by copyright worldwide, and we recently added a sentence to that effect in the notice at the bottom of our licenses and CC0 ..."