For further info watch the following youtube report: https://www.youtube.com/watch?v=gOnTE3KsPkY
For me to have written "I suspect we are witnessing a massive inflow of South African Rand into Bitcoin", may not have been completely accurate. Since Mavrodi is based in South Africa his MMM funds receive all types of currencies...CNY, ZAR etc. He may be using some sort of ZAR/BTC hedging algorithm, since the price of ZAR has to be important to him.
Some may consider this a far fetched theory, but the current inverse relationship presented in the chart is to hard to ignore in my opinion.