they were happy receiving 20% ROI calling themselves investor like sabinus.
20% ROI daily, weekly, monthly or yearly? It can never be yearly though, it would be daily. Obviously scam. But, I haven't heard about this Ponzi, Ponzi is never my thing and am not up to date about Nigerians news lately.
But your topic tilte and the link you posted under it is about a man that was defrauded by possibly a trader or scammer, the man paid to the trader and the trader blocked the investor account and stop answering his calls, which would probably be after the person lost probably as a result of the recent bear market or maybe not.
“The defendant presented a business proposal of online bitcoin trade to the complainant and persuaded him to invest.
“After the defendant collected the money from the complainant, he blocked his account and refused to pick up his calls.
This is a very very common scam tactics. At times, it may or may not be intentional. I remembered few years ago when I read on Punch about a guy that told a women he knew very well about trading, the woman trusted the guy and invested. He traded and gained until the woman and her husband invested millions which later all got lost.
We should really be very careful, advising people not to fall into this type of loss. Some traders were even open, but not knowing it would result to loss and later result to loss and become court case. One of the things I can never do is to entrust my money on someone, it is not possible. I will do my thing myself or never do anything.