I noticed that a lot of people here and on auction hide their license plate numbers when they post pics of their cars and bikes. I've done it myself. But when I think about it, all of us drive all the time and we never bother to cover our plates when we park somewhere out in public. Anyone can walk right up and check the number out, write it down, do what ever they want.
How come we don't worry about that -- no one bothers to hang a towel over their license plate when they park -- but we worry about posting a pic of the plate on the web? Any opinions on this?