My friends, who still playing, sent to me this thing. To protect my old "friend" I want to say some points.
If you want to continue this "name hunting" you should ban everyone. People in the most characters using name and surname which are exist in real life. Holliday name in Wiki link
With your logic you should ban everyone with name Joe, cause we have USA president with same name now. This situation looks like this.
Instead you should can change this rule so that have not such a wide area of responsibility.