I view this as positive and negative.
It resonates with me because users should have the freedom. I ran Boston Sketch meetups https://www.meetup.com/Sketch-Design-Boston/ for two years and several users couldn’t participate because they were using windows.
I see it as a problem because designing on windows puts you in a different state of mind and atmosphere...and one way or another we are products of our environment.
I found out that the environment of windows reflects negatively on design.
I worked at TBWA advertising, I had a startup, and I recruit many freelancers all the time...
When I look at designers portfolios I can immediately know whether they are/were using Windows or Mac.
For design Mac is the winner.
For crunching numbers nothing beats Windows excel.