No idea. It may though not be just a problem with this site. The site may be using algorithms and servers from the outside to locate you, and they are far from infallible. Even the almighty Google and Microsoft have between them, decided that I live about a hundred miles from my actual location. Despite me trying to put them right.

It is thought by some that the power of digital media, via the net, to do things like locate you exactly, and know all about you, is some sort of threat, in my limited experience it is not much of a threat, because even the biggest and best of them are completely incompetent anyway.