I believed that Ponzi or whatever you want to called had been with this industry since those scammers discover that they can make a lot of money here because people are too gullible to trust blindly. Specially if someone would offer attractive returns. So the only way to fight them back is not to fall for the trap. Just used your common sense and I'm sure that you will be fine in this market.
People here in the Philippines can easily be fooled in investing money its because of the bigger profit we may get through and since those scammers have an experience about bitcoin, people who don't actually know the flow on how to earn in bitcoin can easily be fooled or as you say it's a trap.