@ Gozzzz - There is no way for Forum Moderators to verify if an account is or is not an alt of another account. We cannot take action based merely on another player's say so. If the user that the signature is claiming as their main posts here, on Forum Help, to refute the claim, then we can take action on it.
@ Miu - You should continue to report forum ban evasion to this thread. The post I was replying to in my other post was regarding a completely different situation.