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iFixit Tears Down McDonald's McFlurry Machine, Petitions Government for Right to Hack Them
(www.404media.co)
This is a most excellent place for technology news and articles.
It IS graft. I've forgotten where I ran into the information but someone tracked it down. Taylors (the machine company) has an exclusive contract with McDonald's Corporate for the machines and McDonald's Corporate receives a portion of the service revenue whenever a Taylor machine is "fixed".
That's why McDonald's is fighting Kytch / helping Taylor.