The Affero General Public License. It prevents anyone from even using the software in conjunction with any other non-GPL software, which is awesome for us people who cherish our freedom and really bad for big money who love nothing more than to profit off of proprietary software.

Briefly, "the realization that each random passerby is living a life as vivid and complex as your own." Originally from the Dictionary of Obscure Sorrows, which has a lot more beautiful neologism definitions like this you might enjoy.