Most of their customers don't sell software, basically every company needs software these days. They still have those needs if all software were free, so I'm not really seeing the problem.
>Also, just a a final comment, I find it amusing that Stallman has these little nicknames for all the non-free things he doesn’t like. It seems to me a bit childish;
He named his first major project after a local ice cream shop, and his second after a children's song from the fifties. That's just him. I find it silly but don't see it as credible attack on his message.