Well that is why many bounty hunters tend to handle multiple bounties at a time, so that they'll be able to mitigate risks of wasting their time on a single project.
Also because it is very easy to join multiple social media campaigns at the same time. Also shows that the bounty hunters are nothing more than hired mercenary like. Further shows that the lack of integrity that they have towards specific projects.
Point is that with more people failing to understand that bounties are not worth their time, the supply of bamboozled "no-pay" workers continue to grow and they will be scammed of their hard work and time.
They do not walk away they continue to open new bounties under different names and continue to scam us. We are not working hard enough to out these scammers and report them to the authorities this is why cryptocurrency is not being taken seriously outside of this forum.
Are you seriously reporting them to law enforcement? Doing so from where I am from, people would start laughing and take me for a lunatic. But if you have had any success do let the forum know because this would be a lively discussion for sure.
But the bottom line is pretty clear : bounty hunter became bounty hunters because of their own choice. So they have to suffer the consequences of their choice.