OS spying is so much more invasive than application or service spying because you can’t opt out as easily. You can go without Facebook but a lot of people just need windows (for their jobs if nothing else, though I sure wish unity3d ran better on Linux and that more games ran smoothly on Linux)
The OS is also theoretically able to watch what you do in other services by monitoring keystrokes etc, where Facebook merely dreams of such things
The OS is also theoretically able to watch what you do in other services by monitoring keystrokes etc, where Facebook merely dreams of such things