Truly we have many of them but only few can be trusted . As a bounty hunter, you duty is to find those few.
I personally rejoice that bounty still exists. And as it happened, not a lot of scams, just a lot of hard even to start.
You should choose a bounty where the white paper is good and the team is good because those things will be the reason of the successful ratings of the campaign you'll be joining. Just read enough information regarding your bounty campaign thoroughly.