Liberty is the right to do what I like; license, the right to do what you like.
— Bertrant Russell
Under which license has this magnificent software been published?
You’re kidding, right? Too right.
Slapping a license with restrictions of any kind on a published chunk of code seems to me to be an exercise in futility.
Who’s going to enforce Attribution, Share Alike, or even a GPL?
I have better things to do, my friend, and if you’re not going to enforce it—and nobody does—then why the license?
Please don’t say silly things like 'honesty', and 'in good faith'…
So, I’ve saved myself the worry: The whole kit 'n caboodle lives under the burden of 
The Unlicense.
Just let go.