IMO, this "Nigerians are masters a scam" story serves as a contemporary example of the Western [read European/European descent] practice of minimizing the positive contributions of the entire continent of Africa [excepting Egypt].

I generalize, but I submit that is it is 'traditional' for many Europeans/persons of European descent to concentrate on the negative aspects of past & present African nations. I also submit that it is commonplace for Western societies to ridicule African peoples & cultures-if they even concede that these people have cultures.

After all, the one with the most power writes the history, decide the educational curriculum, and uses its mass media {including the Internet] to shape public opinion.

For example, besides the fact that some Nigerians are involved with scam, what else do people know about past and present Nigeria?