> If you are an hobbyist, OS X can be enough in some cases.

If you use OS X for a server (remotely, at least), you're really just using plain old Unix. There's no significant difference.

> Well, that was kind of the point. Unix is the only choice on servers => there's no diversity.

Right. But then what does "promote diversity" mean? Going around saying, "boy, I wish there were more server OSes"? Writing my own OS?