What I wonder is, what is the coverage of features used by Every User? It seems unlikely that every user uses the same 5% of features. Thus the question is, doe

What I wonder is, what is the coverage of features used by Every User? It seems unlikely that every user uses the same 5% of features. Thus the question is, does there exist some set of equivalence classes of feature usage across Office users that is bijective with the set of Office Features? And if not to which degree does it fail to be surjective. This would be a (silly) measure of how much users drive Office's evolution and how much its just a bunch of people thinking up nonsense to fatten up the feature list.