Also, to say there isn't really a problem with pavement cyclists is pretty extraordinary.
Have you read the posts by pedestrians on this thread? Do you think they're all making it up?
Did you actually read the piece about blind people being injured by pavement cyclists in Cambridge? Why would Cambridge be so special? That must be true everywhere. Does that not strike you as a bit of a problem?
If you don't thinking licensing is the solution, then what is your solution?