Windows 7 and 8.1 users were provided the opportunity to upgrade to Windows 10. Per the article, it does not have the bug. Many people who are running the old versions of Windows are doing so by choice.
I'm intentionally still on 8.1 due to the telemetry/tracking/ads/etc in 10. Slowing converting our stack at work off all MS so that my next OS doesn't have to be Windows.
As I said for many people it is a deliberate decision not to use Windows 10. Like any technical decision, it involves tradeoffs. The same was true when Windows 8 came out. And the popular media was filled with stories about how bad it was and how great Windows 7 was.
That's what I was prepared for when I installed Windows 8 and when I started using it I thought there was no way I would be productive. Then after about the first two hours or so, I decided to try the tutorials and within three hours of finishing the install over Windows 7, I was fully productive, because all the fuss about no start menu was about not knowing how to press the start key on the keyboard.
With Windows 10, I use |Settings| to set what I want and don't have much trouble and when I do, I just turn it off. Compared to my smartphone, it's a relatively high level of privacy. Though none of it is really private since someone resolves my DNS requests and my ISP routes packets before they get out of the building...not dissimilar to my wireless provider's access. And when I take my smartphone out and about, all kinds of beacons can ping it and ID it and most phones default to automatically connecting to whatever network there is.
I did not mean to imply it was a foolish choice. Rather, I meant that it is often a deliberate choice that includes technical tradeoffs and this is one of them. The fact that 7 and 8 are still supported makes Windows more stable than Android or iOS. My intuition is that Windows 10 collects less telemetry than either of those and that what telemetry it collects that cannot be turned off is shared with fewer parties than a mobile device.
