Re: "....should you do it?"
@TeeCee
Your choice of icon seems appropriate for your views.
As I've said a number of times here, go and read what Microsoft grant themselves access to once you've agreed to their T&Cs. And read it carefully enough to spot that they don't exclude any accreditations you may have with non-Microsoft entities, nor to any transactions you may make with non-Microsoft entities. Remember that Microsoft, at the very top, is run by lawyers; do you think such gaps were accidental oversights?
Yes, they've made various statements as to the fact that they don't do this, don't do that. They may well be prepared to swear on a stack of Bibles that they don't. It doesn't alter the fact that that can be changed tomorrow by an update that their users won't be able to decline and the legal gate to allow them to do that has been left wide open.
And if you still don't think that amounts to anything, then at least take a little time to ponder why the French data protection regulator is now taking them to task over all this.