This subject is another one of those dead horse topics. Those of us in the southeastern region, that don't see many listings, get excited when a listing says SE or SW and it is talking about south side of Atlanta.
Atlanta to lots of users is seen as the middle of the state, even though it's in the north part of the state. we humans tend to go by a point/location with name instead of a latitude and longitude and atlanta is the capital of georgia and heard of every time the news comes on so it's easier to remember