It's just a copycat exchange some people created with the (I read this) hope that one day they can sell it to Binance. A weird strategy if you ask me, considering that most exchanges are banned in Nigeria.
Dunno, to me more plausible explanation is that people behind this fake Binance tried to scam Nigerians out of their money, rather than selling this company to Binance. But I agree, weird move indeed,