Don't have a car?!?<quoted text>
Well, I don't have a car. My name is available online in many locations, G+ likes to advertise that, lots of people like to post their real world names in many locations as well. There's also LinkedIn, the place to get connected with professionals of all type, where you post your real name and phone number so they can contact you for job offers.
I know you're new to the concept of global communications, but you can't be that naive. Your information is also available to anyone with even a small amount of computer literacy, anonymity is, and always has been, an illusion, nothing more. Topix staff have record of your IP address, and can trace it to your physical location or mobile device, if they wanted to. Every website you ever post on can. It is now standard practice to record IP addresses of everyone that posts, in case the authorities request it. You ISP masks the exact location within reason, as it's part of their contract most times, but with a simple court order you can get that information from them.
In 2012, how'd that possible?
I have three.