> Non-XWindow- based system is clearly not Linux for them.
What a bizarre concept... So, you're saying that a Linux server with no running (or perhaps even installed) X server is not really running "Linux", whatever that means?? I'm sorry, but that's simply insane... I can think of no one whose definition of "Linux" is tied to X at all... (Plus, if X and the related desktop environments are what supposedly define "Linux", then does that mean that every other system that X and they run on are now also "Linux"? That makes absolutely zero sense...)