Those emails were probably send to Microsoft by the journalists themselves, as even with the privacy statement, they can't legally read private emails. However, it's still possible for things to leak (emails, information, etc.).
PS: About the Nirvana quote, watch the movie called "Red".

Also, watch the South Park episode Human CentiPad (season 15, episode 1) and you will see that you are partially right to be afraid.
First off, I don't even want to start with all the BS you see in spy and hacking movies, but it's IMPOSSIBLE to use the camera without the computer being on. Camera needs a driver to function and drivers can only load AFTER an Operating System is already running. Since it uses a USB port for data transfer and power supply, while the first only requires the BIOS to be running and the second is always active, there is a third variable that is required, internet connection. So, we have USB always running, data transfer (still no video without the driver) and internet needing BIOS to have booted up, and finally load the drivers then video function after the Operating System has booted up. Do you see the improbability of it happening now? They can only do do something after the BIOS boot up, but unless the OS loads too, the most they can do is switch the power on your webcam on / off.
This is an answer to both of you, so just read carefully.
Now, on to the next point of discussion. Microsoft has a background services running on all Windows computers (Win 7, 8, 8.1, 10) called "Application Experience", "Application Layer Gateway Service", "Application Identity", "Application Management", "Background Intelligent Transfer Service", "Certificate Propagation", and some others for earlier Windows versions (Vista, XP, etc.). The services listed above are all the services Microsoft uses to collect data from your computer, so judging by how scared you are of the big corporations (this is a reference and a joke in case you didn't get it), you probably will want to deactivate those. Here's what to do:
1) Go to Start and in the search box type "msconfig"
2) Go to the tab labeled as "Services" and sort them by "Manufacturer"
3) They probably are shown as "Stopped" in the last column, but that is just their current state, regardless, uncheck the small boxes next to their names
4) Hit apply changes then close the tab
5) Restart your computer if any were running at the time of disablement
There are also many other processes in the list that sound suspicious, but they are just like that because of their names or they are processes intended for older Windows versions and are no longer able to run (not even in compatibility mode = completely harmless).