all this and much more has been brought up many many time and seems a very flawed argument tbh regarding not using a given piece of software, and i'll give an example if i may,
do you use a phone? doesn't matter if land line or not tbh,...
do you use car satellite technology?
do you use a internet browser of any sort? or almost any sort of device, matters little,...
do you use email?
i could go on tbh,
but if use anything now days, online banking, mobile banking, or hole in the wall or counter banking for that matter,
pay tax, vote, use any medical care system almost anywhere in the world, your tracked, logged and in a system somewhere.
credit cards? bank cards, or bought a house even, your logged and your data is shared, your online presence grows the moment you are born and doesn't die with you either, it stays in the system until someone removes it, and it won't be you.
but you worry about what your own pc is giving away, lol, it's laughable,
read any online security mag and they will list every version of all browsers, bar an odd one or any version of any O/S even mac's spying on your data and using it in one way or another, the only thing M/S did with windows 10 is announce which part it's gathers, in the same way as steam does as part of it's terms for using it's software, as you rent it, as no O/S is own, and almost any piece of software, if you read between the lines, it's code is it's own, bugs and trackers combined.
if you worry about what your giving away, then move, have no presence, no house, no bills, and get off the grid, you still can, but failing this, unless you have something to hide, don't worry about what leaking from everything you do while your alive and live a bit, as in the real world, camera's only look for bad people, crooks take more care than normal people as they have something they wish to hide.
big brother has always been watching, reporting and tracking, recording and filtering out the good, bad and those who fall in-between.
use it or don't use, but putting a bucket on your head doesn't protect you from anything more than they already know and got from previous versions, so unless you wish to go back to a piece of string and tin cans, careless, not more,...
last year windows 10 reach 500 million active users, that's not installs, but online at any given day eg serials numbers etc, so if like me you have reinstalled 20 times, it wont add to the number, as same serial used etc etc
so if you think anyone can harvest and record and keep and process that much and it will double to 1 billion soon enough, then good luck on getting the data and finding a use for it or pay for it to be stored and sorted, for what?
90% of my stuff is about cake, biscuits and or games, so not really earth shattering or worth much of a first read, never mind storing and or keeping, but if anyone wants a read, just drop me a pm and i'll add you to the email list and forward you some also