Indeed, there are situations when projects do not collect the required amount and because of the lack of opportunity to implement the project, they do not pay money to headhunters. But on the whole, there are a lot of scammers on the cryptocurrency market, you have to be very careful here.
There are a lot of scammers not only in the cryptocurrency market but it is important to understand that the tricks of the scammers are mainly for those people who are not educated and do not know how to understand projects.