@Suiseiseki Software as a service is one important hole in the "license as sole mechanism for freedom" approach. It's not clear that a license does or *should* have the power to bind persons who only use the program without receiving or distributing it; it's not clear that a license does or should have the power to force giving copies to users who use a Web service; and even if they get copies, dependencies (such as on Google hardware) and the code/data boundary reduce usefulness of the code.