@zacchiro @simon I agree enough in that I think users tend to feed such companies so much information already that they probably don't have to. But the many avenues of information being fed might not be understood by all users; microphones are one that's clear and straightforward.
I think if anything, we should be raising the profile of just how much people *are* being spied upon, rather than dismiss a concern that's plausible but unknown. That seems more important to me personally.