Is having multiple accounts really that bad? From what I see, it's not like he abused his power and participated in bounties ran by himself. He doesn't seem to be abusing any bounties. I would hardly consider him famous.
I have the "no multiple account" rule in campaigns I manage, but it's only banning people from participanting in the campaign with multiple accounts. I have the account DarkStar_alt; does that make me not reputable?