Do you over share?

A friend and colleague posted a picture this morning and I had to steal it. It has too much educational value to not share it. (You know who you are, thank you)
One of my driving hobbies is personality reading of people by their bumper stickers. I had not contemplated the potential black hat value of it. Just like any other form of social media, we share too much. There needs to be a cool name for this bumper/back glass social media… is there one yet?