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.
Sometimes they do and it is a reason why a signature campaign is usually having so much allocating from other campaigns because it is directed to attract bounty hunters to the ICO investing, as it works with me.