The author of JSLint wrote:
"So I added one more line to my license, was that, "the Software shall
be used for Good, not Evil." And thought: I've done my job!
/.../
Also about once a year, I get a letter from a lawyer, every year a
different lawyer, at a company. I don't want to embarrass the company by
saying their name, so I'll just say their initials, "IBM," saying that
they want to use something that I wrote, 'cause I put this on everything
I write now. They want to use something that I wrote and something that
they wrote and they're pretty sure they weren't gonna use it for evil,
but they couldn't say for sure about their customers. So, could I give
them a special license for that?
So, of course!
So I wrote back---this happened literally two weeks ago---I said, "I give permission to IBM, its customers, partners, and minions, to use JSLint for evil." "