The cynical side of me wonders how long it will be before prosecutors argue, with a straight face, that using evidence obtained from mass surveillance against people using Microsoft Windows is okay because Microsoft collects a massive amount of data so nobody should expect their files and activities to remain private; that there is or should be no expectation of privacy on such a system.
And then how long until warrant applications come in with supporting evidence that the subject of the warrant uses Linux and therefore their increased desire for privacy is prima facia evidence that they're doing something illegal.