The whole point of me putting the location in the header is to make it easier for people to know what city or state you are in. If you change it to something useless, you're going to have to keep reminding people where you are, or having people contacting you who don't need to.
I don't want people to know exactly what suburb or street you live in, but I might as well remove it from the post header if you aren't going to use it.