Investing in an ICO is not always between the ICO and your money, sometimes it just takes effort and time.
Yeah, Participants in bounty are not just workers, they can also be called as investors.
they are working for the ICO for advertisements for the success of ICO sales.
as a newbie, i sold my tokens too early. this made my profit just 10% of the real amount.
You can never be able to predict whether or not the tokens or the underlying project in it, will be successful or not. I've seen a lot of tokens that went from $20 down to $.5 or something.