I presume the facebook licensing allows third parties to republish content uploaded to their servers.
I hate to sound cynical, but does the world really need more ways to share the plethora of crappy photos that is instagram?
The way the default licensing on Instagram works is: you hold copyright and Instagram has a non-exclusive right to use them in some ways. It doesn't permit usage outside of that. So if you wanted to use an image on your blog or in a Wikipedia article you'd be out of luck (or maybe just get lucky and not get in any trouble).
Truly, they are _your_ photos, not FB's, and you can license them any way you want. The CC license is there because people generally do not write up their own licenses. How many people even truly understand copyright? Most lawyers I know do not even fully understand it. Nothing is to say you can't draw up your own license though. One of my favorites is the "Do Whatever the Fuck You Want License". It is one line: Do whatever the fuck you want. Beautiful.
Another one I like is the "non-license". It's two words: Public domain.
This is the web. Everything gets copied. And licenses are just words. What matters really is whether someone is going to sue you. A license can make that easier or harder to do. But the truth is, if someone really wants to sue you, if you are in the US, they can. License or no license. Whether the suit goes forward is another matter. Still, getting sued is a hassle, even if the suit is baseless. (A strategy is born. Eureka.)
Apologies for the profanity.
You need a marketing campaign around the concept.
better find a way to undo that https://thispicturesucks.wordpress.com/2009/07/13/creative-c...
Wish Instagram had offered this option from their launch. Imagine how many great photos we would now have in the commons .