You are not alone in thinking that only copyleft licenses are free. I think people get this association from GPL = free = Stallman = copyleft, since rms does ke

You are not alone in thinking that only copyleft licenses are free. I think people get this association from GPL = free = Stallman = copyleft, since rms does keep talking about all of those things, so that's what people think he is saying (or they get it second-hand from people talking about what rms said). However, rms has never said that non-copyleft licenses are not free. He does call them weak or pushover licenses, though, but he doesn't think they're wrong.