Sorry! I thought he is a Russian.
Haven't you got one person who doesn't have any accusation from others? It is better to check how xandry* moderate the board and if he misuse, he can be removed easily.
* Assuming you have got no one else who can be a mod.
You understand that the accusations may be false. Guarantees also have a subjective character.
In whom I can be certain of, it is only yourself. Experience an impartial moderator I already have.