Who knows? The rate of return is so high。
Rich people have resources we usually don't have. They can easily get into something or invest on anything and the legalities are not in their personal name but on holdings they have. There are those who are avoiding the media so they bought Bitcoin secretly. There is a big possibility that Warren is already into Bitcoin and other coins in the market.
Exactly! If I am a millionaire and want to multiply my fortunes thru Bitcoin then I would do it secretly since aside that there is no real good effect for them which most likely it will lead to either put tax on the large money I had invested or they come up an idea that as if I am evading paying tax. If we weigh the advantages of the public to know then I say that it wpuld be better for them not to know for your own sake.