AC: "Endlessly adding backwards compatibility to the latest stuff just adds bloat."
What you forget is that the only real value of Windows over any other OS is exactly that bloat - the ability to run 'legacy' applications from 10 and 20 years ago.
Windows is simply not special in any other way. It's not as flexible, or secure, or manageable as Linux. If I didn't care about running my old Win32 software, I'd be 100% on Linux by tomorrow morning. And so would everyone else.