We need to consider a lot of things before choosing a good and worthy Bounty. We need to make sure that we gather enough knowledge about the project. A Bounty if a lot different with an Airdrop. With an Airdrop you just need to sign up and you get your free tokens, with a Bounty, they ask you to give them more time to be able to do the criterias listed on the programs terms and conditions. You need to identify what's the coins/tokens for, why was it created, what does it intend to solve, who will benefit once successful. Know the team - read about them, do a cross reference if you can, check their social sites, are they active or anything unusual? Ask them questions if you want to know something. Check and analyze if their roadmap is feasible. Make sure that you do your own research for you will act as a front liner in promoting their program, you don't want to waste your time in projects that will likely scam you out.