I don't care what they collect, I just don't want to be annoyed by what they are collecting. The more you have turned off the less they bother you with stupid notifications and recommendations.
Technically you can turn it all off via the group policy editor, but that's neither convenient nor trustworthy. Like "click here and we'll stop collecting your data, we PROMISE. For reals this time." It just seems shady. Then again the hardware-level backdoors you have no control over (Intel ME) make your privacy…