Can the Nigerians here tell us how big MMM has been at various points? I've seen it's gained a lot of attention there and presumed that was the primary driver of BTC volumes there.
Yes MMM used to be the real driver at a time coupled with ZARFUND MLM but they all fizzled out (though MMM Local Currency still operating at the moment but with low spirits)...
Right now many Nigerians are into cryptocurrency trading on bittrex, poloniex, cryptopia, binance, yobit, etc and that's what primarily drives bitcoin in Nigeria for now..