I can't help but laugh at the irony that one of the most popular and most proprietary operating systems in the world uses a forked Mach kernel called XNU, for "

I can't help but laugh at the irony that one of the most popular and most proprietary operating systems in the world uses a forked Mach kernel called XNU, for "X's Not Unix." Anyone at Apple have a beef with the FSF back when they named that?