Finally CBN gives the main reason why they put ban on crypto in Nigeria, the fact is there are many bad eggs among the good eggs, online romance scammers are now using bitcoin as their benefactor to cashing out money easily with no traces, read news here
https://www.arise.tv/how-fbi-alerted-nigerias-central-bank-to-scammers-using-cryptocurrencies-to-defraud-the-west/The question is are white people so stupid that they will keep sending money to people they've never meet in real life? Honestly all this defrauding through romance and other ways have been going on since past years now, I expected all this to have come to an halt, the problem isn't even the scammers but people who allowed themselves to be used looks like the Nigerian government does not want its citizens to be smart...
Bitcoin is a trust-based currency, even if you are in doubt you can buy/sell Bitcoin on major exchanges and it has been proven safe. regarding scammers who use Bitcoin for their transactions, it looks like it happened a long time ago even before Bitcoin existed, so it's not a big problem.