I think we can see the whitepaper, which manages the Ico and others. there are many factors that determine or help us see whether it is legitimate or not. We need to see the project for the right gift and consult with our mentor.
Naenjadi is knowledgeable about ICO, bitcoin, altcoin, and crypto, you should start with that. After that, when you will choose a gift, consider the roadmap, whitepaper, developer, website and the project itself. With this evaluation, you can verify whether the bounty will succeed or not.