My Location Keeps Being Changed

When I signed up to this site, I put my location. Frederick, Maryland, in the United States. I keep looking at my profile to make sure it is as I set it up to be. This is because every time I went to Edit profile, my birthday has been changed also.
Well, now my location gives the city, and then says Earth. I posted my location. I don't like when I see Earth on other profiles, so I don't want people to have to see it in mine. Every person I have ever met was from Earth. It seems like a sarcastic, condescending thing to write or say that you're from Earth. I hope so, unless you're on the repair crew to that space station.
I don't know how to get it fixed. I edit it, and it goes back the same. And so does my birthday still.