Whether you call it "business logic" or "the real code", the fact remains that the real, sneaky, controlling code; the one that manipulates users emotions[1], must remain secret and restricted.

I don't think companies that do this have a true commitment to respecting their users, and their rhetoric about the evils of copyleft always make me think, "what are you trying to hide or control?"

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[1] http://www.nbcnews.com/tech/internet/facebook-manipulates-em...