Unless someone can prove that Microsoft is abusing their access to our information then threads and comments contained in these threads are, at best, paranoia, and at worst, fear mongering.
If you guys want to go back to DOS 1.0 and Courier Pigeons then have at it. The world is advancing but you don't have to.
If you're genuinely worried about Microsoft listening in on your household through your computer and monitoring your keystrokes then you might as well throw away your Apple and Google based phones. You might as well also stop using Google for your searches. While you're at it you should probably stop using Gmail as well. The things that you guys are lashing out at Microsoft about have been going on for a while now. And frankly... none of them concern me.