>>542088835
probably means the game shard/instances shitting themselves a bit. pretty sure home is your connection to the broader realm based things like authentication, the ah, and maybe the wide realm chats. world is the shard/instance you're in.

you could also be partied into a more distant realm. this example is me joining an austrailian server then inviting that same character to my normal 30/30 realm. it takes a little while to update to this point but this shows the difference it pretty clearly where the home holds to the realm location. if you were just non-partied it'd be 80/80ish from east to the west.