Joke huh? Yeah, right. I'll tell you what, when you actually grow the hell up, get a license, and get a car, I'm going to take it and drive it into a brick wall. Then, step of of the badly damaged vehicle and say "Ha, its okay, this was just a joke." Though it didn't cost them anything but time, you still knowingly messed up another persons build as well as their server.
Unwritten rules are what makes the world go round. Most people have the common sense to know just what these rules are. You however lack that bit of common sense. For example, It says nowhere in actual laws that you can't take cow stuff and rub it on a houses windows. It doesn't have to. Most sane people know that's loving stupid and you will get arrested for it anyone.
If you purposely do stuff like this you are interfering with the gameplay of another paying member who spent good money. You deserved to be revoked.