Well, that's because they want to get rich quickly without thinking about the risks, and the main factor in this is greedy, but lazy to find information about the truth of their investments. because of this, many people are exposed to scams on HYIP or Ponzi sites.
that's one of the scammers trapping investors, by offering huge profits quickly, and of course investors will also be tempted without first researching the project, a lot of projects like that these days