User blog comment:Semanticdrifter/Understanding Privacy/@comment-13301-20130829173553/@comment-4811793-20130830134720

It's all about finding the right balance between using these tools to create connections with other people and keeping your information private. When provided with the prompt "I Live in:" all of the following would make sense, and they each provide a different granularity of personal information to the world at large:
 * The Universe
 * The Milky Way
 * Our Solar System
 * Earth
 * The Northern Hemisphere
 * The United States
 * The Southern United States
 * Florida
 * Central Florida
 * Orange County
 * Orlando
 * Local Neighborhood
 * 1234 Totally Not My Address Lane

Some are more serious answers than others, but we like to think the prompts are broad enough to let you choose your own comfort level.

One interesting thing to keep in mind is the way the data trail you leave behind can provide data points that can provide more info when taken together as a whole than when given discretely.