I am a bounty hunter also by joining signature, yes we are like an investor we contribute to the projects by promoting it across different social media platform or by blogging, designs, etc. but we are responsible for investigating it first verifying if it is not scam/fraud or similar. If we promote a scam project, we help promoting and spreading scam projects which is not good. Don't just join any projects without having to learn their legitimacy and what is their purpose.
All that must be done before joining our bounty as hunters do it right with the promotion because we don't want to waste it on a project that we are promoting, so it's a fraud so I think it's our responsibility it won't accept any reward only voluntary work that is not paid.
Bounty must now be done with careful research not just from the project.