I guess this happens because people do not read the news. It is very important to be aware of what is happening in the world. I saved a Nepali once from falling into this scam. He was all ready to loose 40K!. He was not convinced because there was a check in his email with his name, passport number, photo with 30 million dollars or so ready for transfer.

He was only convinced when i copy pasted the "hi i am (scammers name)...." and googled for the scam and it came up!. Shocking these nigerian scammers are even in Nepal now. Not like there arent already enough scammers in Nepal.