A new trend?

I discovered San Diego Bloggers today, after seeing a Bay Area blogger page. Now, I understand listing blogs by categories -- religious, literature, politics, soapbox -- like on Blogarama, but by area? And to take things a step further, apparently you can go to Geo URL and list your exact longitude and latitude. Isn't that a strange concept? After all the effort of aliases, initials for anonymity purposes, you want to publish your longitude and latitude, which give your exact location? Sort of an oxymoron, won't you say? Oh, you can even see the map of a location. See example:

Random Sample Map