I have to say, I have mixed feelings about this. I have no sympathy for scammers, but the Nigerian scam is so old, the routine so familiar, and the approach so clumsy, I'm past feeling sympathy for those who fall for this, and feel growing sympathy for those desperate enough to try it. I can imagine someone knowingly entering into an illegitimate "business" (scamming rich foreigners) and thinking they've stumbled upon a legitimate business (handwriting!). So fine, and good, right? Let them suffer.
But most likely, this person herded up friends and family desperate to make a buck (no shortage of needy people in Africa) and convened a Harry Potter rewriting sweatshop. They must have thought they stood a chance to make a buck, and many of them likely did not start out in the scamming business. Basically, there is more than one victim here.