The original article ("Why do Nigerian Scammers Say They are from Nigeria?") does not contradict what the grandparent writes.
Let X = claim to be Nigerian, and Y = earn money using a "419" scam.
The article says that while it may appear foolish to do X if you want Y,
an economic argument shows that doing X in fact leads to more Y.
The scientific or analytical part of the article is solely the part about
X leading to more Y.
The author then conjectures that Nigerians must continue claiming to be
Nigerian because they have somehow come to realize that it is good
for business.
The grandparent's conjecture is that Nigerians continue claiming to be
Nigerian simply because they still expect the money to be deposited into a
Nigerian account, they still speak with a Nigerian accent, etc.
Both are reasonable conjectures, and analytical part of the article
is consistent with either one.
Let X = claim to be Nigerian, and Y = earn money using a "419" scam.
The article says that while it may appear foolish to do X if you want Y, an economic argument shows that doing X in fact leads to more Y.
The scientific or analytical part of the article is solely the part about X leading to more Y.
The author then conjectures that Nigerians must continue claiming to be Nigerian because they have somehow come to realize that it is good for business.
The grandparent's conjecture is that Nigerians continue claiming to be Nigerian simply because they still expect the money to be deposited into a Nigerian account, they still speak with a Nigerian accent, etc.
Both are reasonable conjectures, and analytical part of the article is consistent with either one.