There is no regulations of any sort in the blockchain industry yet and that's why many project team remain anonymous. These set of bounty that remain anonymous most often demand for kyc which is not really fair to hunter since there are lot of fraud on the internet where users identity are use for criminal activities and no hunter can identify these set of people because of the numerous compaign they have participated in . Secondly no be wants to promote a scam protect that might Tanish their image in the public.