RatePlate

Leave comments for someone based on license plate number (and state).
Get email alerts when a license plate on your watch list receives a new comment.
Look up comments for a specific license plate.
Leave a comment for a specific license plate.

Tell someone their brake light is out.
Give helpful hints about their driving habits.
Tell someone "Good Job with the driving there Buddy."
Let someone know that their bad parking wasn't appreciated.
Relieve the frustration of road rage by giving feedback to the people who upset you.

Please don't leave a negative rating. Contact me at rateplate.net@gmail.com and I will look into your concern directly and try to improve the app for the better using your input.