More than 15 years ago, Free and Open Source Software (FOSS) community activists successfully argued that licensing proliferation was a serious threat to the viability of FOSS. We convinced companies to end the era of “vanity” licenses. Different charities — from the Open Source Initiative (OSI) to the Free Software Foundation (FSF) to the Apache Software Foundation — all agreed we were better off with fewer FOSS licenses. We de-facto instituted what my colleague Richard Fontana once called the “Rule of Three” — assuring that any potential FOSS license should be met with suspicion unless (a) the OSI declares that it meets their Open Source Definition, (b) the FSF declares that it meets their Free Software Definition, and (c) the Debian Project declares that it meets their Debian Free Software Guidelines. The work for those organizations quelled license proliferation from radioactive threat to safe background noise. Everyone thought the problem was solved. Pointless license drafting had become a rare practice, and updated versions of established licenses were handled with public engagement and close discussion with the OSI and other license evaluation experts.
