This is a tough question to ask accurately. What you'd really want to know is who uses an OS by choice, subtracting all other factors (e.g. if you're only usin

This is a tough question to ask accurately. What you'd really want to know is who uses an OS by choice, subtracting all other factors (e.g. if you're only using an OS because it runs some app that your work requires). There are plenty of reasons anyone might be using several different systems. In my case, I use 3 different OSes. My only Windows machine is at work; and while I use it for occasional development for Windows, it is mostly a dumb terminal to access a Linux box. At home, I use a Mac by choice, but I can also use it to access Linux at work. Am I a "Windows user" if I visit HN from work? Well, I'd rather not be counted as one.