Not surprising at all. This is all very rational actually. The idea is this: Nigeria is a common place for such online scams. It is so well known, that only th

Not surprising at all. This is all very rational actually. The idea is this: Nigeria is a common place for such online scams. It is so well known, that only the most gullible and unaware people would believe and respond to the emails. And, guess what kind of people the scammers are looking for ... Using a different place runs the risk of getting too many responses with a high percentage of those who are smart enough to soon quickly realize it is scam, so now scammers wasted their time on that. They'd rather use bad English, really stereotypical phrases and so on. It is a good filter.