Nope, I tried that trick they showed on that link and have yet to find what they were talking about, even tried it on facebook. Just don't take pictures with your cell phone and post them directly to the sites. And I agree if someone wants to find you, they will find you. Get a big dog and a gun. I had one guy once come to my door, my German Shepherd dog was out back, but was coming in just as I opened the door, this guy stuck his foot inthe door jam, my dog comes up beside me, I grab his collar. this guy looks at my dog (who is huge!) and says "I am sorry I think I have the wrong place" I said I think you do, and called the cops right after I shut the door.