I am working as a bounty hunter. Previous the bounty campaign was so good. Almost every campaign paid us. There was no risk of becoming scammed. but nowadays? 
In this 2018, almost 70% of campaign is scam
So, I believe that we need some trustworthy manager list for joining only their campaign. If we do so, then the chance of being a scam will be lessened. Am I right?
It's not about the bounty manager but that depends on the project itself. if the project has been created by a reliable team and it can be trusted and then they will pay you based on what you have done. and you can't just the bounty manager if the bounty manager will be refused to pay the bounty caused by the team is untrustworthy. In this 2018, almost 70% of campaign is scam
So, I believe that we need some trustworthy manager list for joining only their campaign. If we do so, then the chance of being a scam will be lessened. Am I right?