I am the legendary Crow, some imposter stole my name.
How do we resolve this issue?
I suppose the question is why are you more entitled to the name than any other person?
It's a common word in general use. If you find the person in game with the name then you can always offer to buy the name off them and supply a name change potion if they agree, which they don't have to.
If you think the GM's or game admins should get involved just to fulfil your personal desires then maybe you should think a little harder.