I have witnessed almost 5 consecutive ICOs that is a hyped ICOs and also sponsored a bounty campaign with big rewards goes way below ICO price. The ICO have a lot of potentials to have a high price. But when the time comes when the ICO concluded and when the time comes when it hit on the first exchange the price really dips hard. Is bounty hunters one of the cause of the price dip?
You need to expand all the projects individually. There are bad projects where there was a great reward there, of course, the bounty hunters are guilty of collapsing the price, and if the project is cool, but it has fallen, it's not because of bounty hunters, there are a number of other reasons.