Also, how many backend video game users are still using Windows Vista, Windows 7, or Windows 8? Hasn't most of the world moved into some kind of tablet with its associated operating systems like Windows 10, so how can we continue using a product which isn't officially approved for what most of the world is using?
I still use Windows 7 on almost every machine I get/use and will continue to do so in the foreseeable future, if I build a PC I install a "stripped" version of Windows 7 because I still think it's better than any of the updated crap Microsoft has shat out over the years.
The world can keep updating into crap, i'm going to stay with what I like because it works best for me & I think this kind of thought is applied to most people who program, design, game dev etc.