I think, shady ico should be banned. ICO with fake team and etc. It will lessen the case of scam.
Hope everyone will help in reporting those guys.
Bounty Hunter should learn to study first the project before promoting. They should get a red too if you asked me. People saw their posts/tweets and sometimes get influenced. Thus bounty Hunters played a great role in the scam.
I can see that bounty hunters just apply in every ico they see. All their posts are about bounties. shhh
It is not easy to implement because there is no entity that covers this kind of authority. It is also hard to prove and collect enough evidence that the ICO is a scam or not. The only way to avoid scam is to do your own diligence in investing or even in joining bounty campaign.