You should double check the bounty manager post history. He is doing this with other projects also which he is managing.
See this post for the reference
Re: [BOUNTY] CRYSTAL DEFI | Redefining DeFiBetter avoid bounties started by him.
Well do you think he is the responsible for those scam projects or he couldn't make proper research to get the information needed?
We have to be very careful while working with him. And we have to run a concrete research about his projects.