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?
IMO, if you have multiple accounts, you should publicly disclose that you own them. The user above, used both accounts to join bounties, so he is clearly looking for money.
What guarantee does he have that he doesn't have more accounts and that he isn't using them to milk money with his own bounties?