Isn't @Draken.Group the bounty manager of the campaign or do they have someone else managing bounty?
He is the bounty manager, they didn't hire someone else, they decided to run it by themselves. Any decent manager wouldn't accept hosting their campaign anyway since they plagiarized whitepaper.
Anyways I think almost all those who are wearing their signature will be removing it once they see this topic or the red trusts that the bounty manager has now and won't risk getting tagged, but about other campaigns Facebook, Twitter and such can't do much about them since almost all of them are newbies and don't care much about their account while they can easily just create a new one, but I think still tagging members who are continuing to promote them despite the warnings could help reduce the number of bounty participants significantly.
Since their bounty campaigns started on September 20th and @Draken.Group got tagged almost immediately (September 21st), somehow i doubt that they didn't notice tags, but majority simply decided to ignore it. Just another proof that an average bounty hunter doesn't really care whether something is legit or not, as long as he gets his precious tokens.
Imho, in this case it would be the best to send PM to all those that are still wearing signature, warning them about the consequences of promoting a blatant scam. At least that's what I did in similar cases.