this is my trick to get a good bounty
1. history bounty manager
2. the amount of allocation for bounty (this is my opinion which is most important because I do not want to waste my time on bounty for low pay) if you can project your income from the bounty before joining.
if profitable join and if not leave
3. website that includes (encryption and whitepaper)
4. project development team
hope this helps and succeed!
In addition to these general points:
If you are promoting a project for bounty the only thing that matter for you is profit (rewards) that you are going to earn.
Let's discuss a case study: If there is a bounty of an awesome project of 100$ and total 50 members joined that campaign then each will be given $2 only as bounty amount will be distributed between all participants.
While there is another project with $25 bounty rewards and 10 members joined it, all will get $2.5 which is higher.
So choose accordingly, I have seen some bounty where is a cap on a number of participants, I think those are a good campaign assuring a minimum amount at least.