That was then. Now, he finds this kind of practice criminal. I know: I once asked him a similar question after one of his talks (the kind where he plays the flute).
He just finds the concept of charging for software repugnant.
Could we get a citation? This is the absolute first I've heard someone claim that Stallman's actual said such a thing (aside from people who are obviously just making things up).
Given that Stallman used to charge $200 for tapes of Emacs, I gotta wonder how you come to this conclusion.