I don't know why you are talking about crypto scam and highlighting Nigeria, there are crypto scammers all over the world and what statistics do you have to back up your claim that there is a rise in crypto scammers from Nigeria. There are crypto scammers in the U.S., in Europe and in Asia, you should talk about the rise in crypto scam without calling out Nigerians and then the discussion will make a whole lot of sense.
Nigerians are a set of individuals that get consumed by making money. If you want to easily get Nigerians to swindle them, talk about making money the easiest way. This is why for us that are content creators, we have the orientation of making contents around finding money making solutions.
The same thing goes with the crypto scammers that penerated the Nigerian market with the telegram crypto mini apps. These obsession about money with Nigerian youths is a crazy one. After Asians, Africans especially Nigerians are another potential market to tap into.