With the possible exception of the F#-using denizen of HN, the examples you mention are obligated, by the nature of their model, to exist on Windows. I would

With the possible exception of the F#-using denizen of HN, the examples you mention are obligated, by the nature of their model, to exist on Windows. I would think that a better way to characterize whether they are on or off the radar of the relevant demographic would be to examine those cases where there is no such obligation.