1. Newbie member claiming that he have some big money on a shady project... That doesn't look trustworthy. You have to prove that you have some investments there. Otherwise, you are lying and attempting to justify / promote scammers.
2. Even if someone got any payments from HYIP that doesn't mean that everyone will be payed every time. Actually that is how ponzi schemes work: someone is offering you a huge interest rates, you invest your money and get some juicy withdrawals. Then people keep investing into this project, at one time project won't be able to pay its users and would have to close its activities. Everyone is scammed but early users might get some money.
P.S. most of the early investors are re-investing their money and even trying to find more to invest and losing everything anyway.