How is this a real cost, is there an estimate of how many bytes are sent and received and at what interval? If it was anywhere in the thousands of megabytes regularly, maybe that's the real cost but that's just an assumption.
Not quite sure what is your point here. The amount of megabytes transferred each month does not have to be any particular fixed number to become a burden for the user, or the ISP. We can see that at least in one case (and probably many more) such a cost can exceed $200. All of this without user's consent.
Microsoft, please get your stuff together. Hire some privacy aware people.
