I highly doubt that, considering Stallman's stance on freedom and personal sovereignty. Free software often operates like market anarchy (pure meritocracy), similar to the Internet. Coercive structures of centralized power that dictate what the 'common good' is do not align with the principles of the GPL. Also the GPL is focused on enforcing property rights ("this is yours unconditionally"), while communism emphasizes transferring property to the government ("this is ours but you might have some if you behave").