name slandering

i really hope you guys will read this and take action to what im saying. lately its been someone on the game that will take someone elses username and go around saying things to people portraying to be that person. i know this because its happening to me. and just because its a game you still have a reputation on it. i REALLY REALLY think you guys should make it where no one can share the same user name and it not be so easy to do so. PLEEEEEAAAASE! i would gladly appreciate it.

Kyyyyy___ about Bomber Friends!