I do not read this as a pitch for people currently running nginx to move to Windows. Instead it is targeted, it seems, at people running prior versions of Windo

I do not read this as a pitch for people currently running nginx to move to Windows. Instead it is targeted, it seems, at people running prior versions of Windows, and who have various reasons to prefer to continue with that platform. I don't quite buy the "this ends the jokes" bit, as the jokes ended long ago (the world was once awash with IIS exploits. It has been a rock-solid, high-performance platform since IIS 6.0, if not before).