Unless there was some statement specifically stating M$ gave them that data, its more likely the cops raided the home and went through the guys computer, where its trivial to just look at the search history. You know Occam’s razor and all.

Its about control. When the stocks crashed in its a wonderful life, the evil banker was ‘kind’ to lend people money to switch over to being his customer. This brings them under their control.

That may be your physical age, but the way you type and act online your mental age seems way younger.