People getting defensive at car shows!

Why not? i'd be tickled pink to have someone that interested
Do you know how much fraud is committed each year using that kind of information? I don't either, but I can tell you it's a LOT. That's why most people (with any sense) cover up either some or all of their VIN when posting pictures in for sale ads and such. It's a smart thing to do. That's why I wouldn't want anyone taking pictures.