This is just like a newer version of the Nigerian prince emails, nothing more, nothing less. I just don't get it, it's like if someone on the street asks you to give him $50 telling you he's going to be right back with $100, he just needs to get into his car to get you the money. Would people fall for something like that? At this point I would say yes.
Why did they even tag it "Nigeria Prince Mail" even when the scam is being performed by outsiders? The country's name is still attached to it. That's by the way.
Regarding the scammers, having read and experienced most of their tactics, most of them are advanced in their methods in such a way that even someone with knowledge of scams will still likely fall victim to their lies. As they always have specific victims for various scam methods. The most common ones on the internet now are romance scams, where the victims are always either divorcees or single moms or dads who are most times desperate to meet a new partner in life, and the scammer will present themselves as their dream lover, meeting up all their expectations, not knowing all those things are just to convince them in order for trust to be built. It's when trust is being built that those scammers can scam their victims successfully without the victim even realizing that they are being scammed as they are being blindfolded with love.