Cory Doctorow's works that were released under more permissive licensing still reserved some rights for the author. I believe he used some flavor of a Creative Commons non-commercial license, if memory serves. Point being that the method of licensing his works was still fundamentally based on copyright.

(I think the US copyright system is hugely broken and the social contract needs to be re-negotiated, but I comment here in the interests of facts, not in support of the broken system.)