Why do Nigerian scammers say they're from Nigeria? (2012)
microsoft.com
microsoft.com
Interestingly, when I bought an iTunes gift card at the Apple Store last week for a Christmas present, the Apple guy ringing me up required me to sign a document stating that I wasn't trying to pay someone with them. Some kind of scam prevention mechanism. I wonder how well it works.
It all sounds obviously fishy to you and I, but an intelligent but panicked elderly man concerned about his grandson's wellbeing fell for it. They don't need very many victims to make it worth their while.
There is significant overlap between people that can't spell to save their lives and people who know very little about real world finances ("We need you to send us 10k for fees to unlock the 50 million").