"Graffiti is writing on things you don't have permission to write on..."

Couldn't you argue that technology is allowing "pranksters" to be more law abiding citizens, particularly with laser tagging! Is laser tagging writing? And what if I did shadow puppetry on your house from across the street -- maybe you'd accept my shadow bunnies but call the cops if I shadowed a gun.

Technology is pushing graffiti to a new place. Open, open, open-source me -- laser me to the moon and back.