I want to be clear: I don't care, and I doubt Facebook cares.
But legally, I think this code was stolen. Facebook owns the copyright to the source code, so copying and distributing is theft in the same way that copying and distributing database contents is theft.
But legally, I think this code was stolen. Facebook owns the copyright to the source code, so copying and distributing is theft in the same way that copying and distributing database contents is theft.
But again: