1. Character can be named not only in English, but also in any other language.
2. You can mix letters from different languages in one name.
3. You can name your character as you wish, no restrictions.
It is a security flaw. Players can name their char with names similar to others by replacing one letter, or use names like "Admin" and so on to trick others.
Quick example I made to reproduce this bug:
This character was created on EN server by using RU "A" letter (Аdmin - copy this to find my char).
