Would be awsome if you explained abit better. But if I understand this correctly your telling GMs that your friends In-game is drity so they will change if for free?
I only see 1 problem in doing this and it's your friend getting banned if your telling GMs your friends name means like "n**gerc**k" in Swedish or whatever. I don't have much exeprience doing this I had a friend doing this ones and nothing happend, he got to chose a new name.
He just said something like "Oh, sorry I didn't know that it ment that in Swedish I'm from German so I don't know Swedish"
I hope this helps you.
Peace
- Jesus