The author asserts the number comes from official Microsoft user base size statements three years apart.
The figure derived from differencing two other numbers may or may not be correct but it has a non anal origin.
The figure derived from differencing two other numbers may or may not be correct but it has a non anal origin.
The author's assertion came out from his ass: he concluded that "more than a billion users" in MicroSoft's presentation means "exactly about 1 billion users".
No, 1.5 billions is "more than a billion users" as well.
The author is a speculating bitch, not a journalist.
Have you read the HN guidelines?