I'm not going to argue semantics here; if you happen to have noticed, the Unix/Linux, Ubuntu and SuperUser sites all have overlapping areas of interest. Does th

I'm not going to argue semantics here; if you happen to have noticed, the Unix/Linux, Ubuntu and SuperUser sites all have overlapping areas of interest. Does that mean they should all be one? The StackExchange people seem to think not, and when it comes to justification on appropriate and on-topic questions, the meta sites and the opinions of the moderators are good enough for me.