Bounty scam is going nowhere, scammers will doing their work, trying to use hunters and running after cashing out, hunters should just keep doing thorough verification before joining any bounty, that's the only way to avoid been scammed.
For new people, of course it is still difficult to avoid some kind of bounty scam, besides the lack of knowledge, scammers are also very smart in doing their job,
so we have to read often so that we have extensive knowledge and also as you said as a bounty hunter we have to do deeper verification.