It is not always a great strategy because some coins can not even rise after bounty hunters sell all of their coins. Therefore, you should determine which project you are looking for and whether they are good or not. I will not risk my money in some stupid icos or token
Hunters do a Bounty campaign to get results and when the token gets the exchange, they want to buy them with high price. You can invest ICO and you will have some bonuses along with your investment.