You shouldn't mix up RMS with the Pirates. While there are obvious similitudes (particularly in terms of privacy, DRM, etc), RMS was initially opposed to their platform of reducing or killing copyright, since that would limit the effectiveness of the GPL without really fixing what he fights against - after all, lack of copyright doesn't mean you'll have access to the source, which is a precondition of freedoms 1 and 3 [1].

[1]: http://www.gnu.org/philosophy/free-sw.html