[dspillett]

That is a huge grey area of indirect use/agreement. If they don't interact with those services than someone else has given MS the data so from MS's PoV someone else has agreed to the policy and from the users PoV someone else has perhaps given their data to MS without permission. So yes, a concern, but not necessarily one relating to this policy except any clauses it has about removing data and its use when they are informed they shouldn't have it.