Hundreds of projects are planning to advertise but only some are really serious with the original plan. ...
Without proper regulation, a lot of scammers appear on the cryptocurrency market, who have only one goal to collect money from trusting investors. And such "projects" can promise high income for investors after the end of the ICO and high pay for bounty hunters. But they initially know that this will not be fulfilled.
Projects that promise to get high returns when investing in them are scams. I have seen a lot of projects like that, they offer great offers to attract investors and hit their greed. But the end result is that those projects have become scams and don't have any profits as they promised