I'm pretty sure this is just about warman using his brother's account to continually shit up the forums. No need to be coy. In which case I have to disagree. Not in terms of banning warman, as i said, he causes enough problems to be beyond defense. However if staff suspected him using the account why not just ban the account until such a time that he can prove his innocence.
Guilty until proven innocent is a much lesser evil than breaking the mod/member privacy trust, which I doubt you'll ever get back after this. I don't disagree with the ban of the account, but the methods undertaken to do so are pretty laughable.
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