Mainly because I'm a windows user/programmer, and I only use a *nix when I really need to... :drink:
Not a smart move, I know, but that's the main OS I'm used to.
I mainly used Windows and Solaris back in my university days, doing mostly academic coding on the Unix system.
I'm just not that familiar with the *nix systems, or know which one I should be using "all the time".
I just have Ubuntu installed, because it's the popular one.
That, and I play a lot of games...