Okay I don't know for sure if this is a bug, or just something strange that occurred. I've recently started using the Carbonite Goto command for locating things like NPCs selling cooking recipes I'm missing. While standing in Brill in Tirisfal Glades, I entered the following:
/carb goto Hillsbrad Foothills 71.5 45.5
Instead of pointing to somewhere in Hillsbrad, it pointed me to Tanaris!!
Tried entering it as /carb goto Hillsbrad 71.5 45.5, and got the same thing.
I decided just to hit up Tarren Mill in Hillsbrad and entered /carb goto 71.5 45.5 and got the right marker. But it was just very strange. Like I said, I don't know if it was a bug, or maybe I needed to enter it another way. (Oh and while standing in Tarren Mill if I typed in the same command with Hillsbrad Foothills, it once again pointed to Tanaris.)