Here's the thing, if you don't have the time to extensively research the hundreds of bounty campaigns launched daily in the bounty section and you just blatantly join whatever new is listed;
then, you are doomed to join a bounty campaign that's destined to be a scam.
There are still a few gems in the bounty sections; a few.
You just need to search a little harder and research a bit deeper.
If you feel like the bounty campaign or the project itself is too good to be true, chances are, it is, so don't bother joining those.
Bounty managers who are keen on launching new campaigns are the ones who value their reputation in this forum.
Being tied up to a scam project is a nightmare for them which is why you only see a few active bounty campaigns under their management.