I've always thought the Wiccan Rede would make a good software license:
"An it harm none, do what ye will"
partly because of the inevitable arguments about whether it's a free license or not
@vi It's not. A software under this license can't be used to make weapons for example.
@Sylvhem yeah, probably the same problem as the JSON "Don't be evil" license
@Sylvhem but without it this story wouldn't have happened: https://www.youtube.com/watch?v=-C-JoyNuQJs#t=2480s
@vi That's hilarious XD.