Icos look for bounty hunters to promote their project through the power of social media.Sometimes, some of these hunters also double as ico investors. But it looks like bounty hunters understand ICOs project and are able to determine very good projects before they invest because of their experiences in different projects.
yes, indeed there are some ICO investors who participate in the bounty campaign.
I think participating in a campaign bounty is very profitable, besides we can get prizes, we can also get a lot of knowledge about ICO.