What did you learn in altcoins, those projects didn't paid bounty hunters even after successful. We can gather information by all unpaid bounties and with reasons why didn't paid. For us this is very hard when our good research is successful but admin cheated to bounty hunters. List why didn't paid, your experience and history about unpaid projects
There is no point in gathering those informations because those scammers are very tricky. We users have agreed to their terms of use upon signing up. But i do hope these scammers will stop and hooefully we will have a law against scammers online.