In other words, "I don't care if I'm being spied on, I have nothing to hide." And also, "I don't care if the computer I paid for is forcefully seized from my control."
I could easily install Linux and remove those problems, at the cost of lesser enjoyment of the programs I want - if Nvidia and AMD would make decent drivers for Linux, and game developers would support Linux (across the board!), then it would make me switch. Conversely, if MS decides to pull something like Apple's app store (I know, I know it's already there!) so that you cannot even install software not received through the store, THAT would be a final straw.
The way I see it, I have a choice - an informed choice. I can use Windows and know that my personal data is being mined to target me for ads or who knows what else, the same way Google, Facebook etc. etc. do, and as a result, not have to worry about whether or not the new game I want to play will work, or I can be free of MS's data collection, take steps to prevent Google, Facebook, LinkedIn, etc. etc. from getting any data about me, and pray that the available graphics card drivers will be good enough and Wine or whatever you have to work with now will work. I choose the former, and as a result I can spend that much more time enjoying my PC, instead of searching for workarounds and fixes.
MS is evil for data mining? Sure, but by the exact same token, so are Google, Facebook and all the other companies who target advertising. I know Safeway is able to track what I buy when I use my club card, but the discount is worth it to me. I recently was browsing for certification training and now I get ads on just about every site pointing me to the trainer for the cert I was looking to pick up. Same deal with Windows, the "discount" of having less administrative work involved in performing the tasks I want to do is worth the nagging updates and data mining.
The real point I was interested in, however is that I have done none of the above-mentioned registry edits to remove the nagging. I have, in fact, seen no nagging on my home PC to update to Windows 10 at all - so as you can see that makes it pretty hard for me to voice an opinion that they are hijacking my computer for their nefarious purposes. I have been debating whether or not to update it based on the fact that there are one or two games which I have been told do not work on Windows 10 and the headache of checking that all the settings of applications I use aren't going to be wiped out.