I think you don't even need to go that far: Hacker News users don't tend to use Windows 8, so they can't very well try out a Windows 8 app. (Obviously some do,

I think you don't even need to go that far: Hacker News users don't tend to use Windows 8, so they can't very well try out a Windows 8 app. (Obviously some do, but my impression is that this is one of the few places where Windows use is solidly in the minority.)