We are no more in the era of cryptocurrency ponzi scheme and that is why it will be very hard for anyone to fall into any ponzi scheme except they are greedy. There are greedy people that will not control their urge to make money and those are the kind of people that often become a victims of ponzi since they are always looking for how to make money by any means possible.
Back the in 2017 to 2021 was when ponzi was raining and their was so many websites that are promising people of giving them multiple of what they have invested in Bitcoin before the platform will crash and many will lose their money.
Don't think that everyone will be smart like you. There are some people that will see a ponzi scheme and the first thing they will do is to put all their hard earned money inside. Let me tell you something, there is at least 2 scams of ponzi scheme that just crashed in Nigeria and you know what's funny about it, they hide it from the public, they don't speak out as if they are in a secret court until the platform doesn't pay again, that is when you see people cry about their investment.
There are some people that will remain gullible for all they care because they don't act like normal human beings. Some people love referring other people to bad place, you will never see them refer people to good place.
There’s nothing to deny from your statement, one thing about we Nigerian, we are smart enough to know what is scam and real. But we keep our smartness aside and do what our mind tell us to do. It has been long wey people dey always fall victim of scam, we always see and even if we don’t see, we hear about scam, but let me just say greedy and let me try my luck that’s what make someone people fall for victim. Furthermore, people can still learn bitcoin without fall for any Ponzi scheme, it very simple, you can learn by asking questions from the person who you think knows much better than you, if you are member of this forum, here is enough for person to understand bitcoin more better, without you falling for scam.