Bill Gates, co-founder of the great Microsoft, has stated in an AMA on Reddit (Ask Me Anything, a round of questions in one of the largest forums in the world, if not the most) that cryptocurrencies have caused deaths quite directly, blaming directly not the cryptocurrencies themselves, but the anonymity it provides.
Specifically, it means that through Bitcoin and other virtual currencies you can buy chemical products such as fentanyl, in addition to other drugs that can be used to kill people and that can not be bought in more traditional markets. You could also buy it on a black market with cash, but it would not be totally anonymous, as it is with cryptocurrencies
Especially Bitcoin has always been linked to the purchase of illegal products through the dark web, where you can (or at least where advertised) buy all kinds of weapons and drugs, in addition to many other illegal products.
Many users of Reddit, like other Internet communities, speculated that Bill Gates could have negative interests against Bitcoin and other cryptocurrencies, claiming (unfairly, and always according to them) that he wanted to provoke with his words a fall (that someone as well known as he is positioned against affects). And, in fact, from his words the Bitcoin has dropped from 11,048 to the current 10,558 dollars, although it may or may not be directly related to the testimony of Gates.
But the truth is that there is more: leaving aside that Bill Gates is right in that with the Bitcoin you can buy substances and weapons to kill people, and although it has not been confirmed 100%, around the cryptocurrencies there is a very turbid cloud of suicides caused directly by descents of certain cryptocurrencies that have lost their holders millions of dollars (this is what has happened, for example, with BitConnect, having numerous users warned that they were going to do it). And this is something that Gates has spoken about, but without touching the subject, stating that it is going long in cryptocurrencies is a "super risky" position, but without going into more details.
No suicide, as we say, is officially confirmed, since this type of data is not usually made public for fear of producing a chain effect (which is proven to be totally false). In addition, it is also speculated that the cryptocurrency regulator in South Korea (where they were about to outlaw cryptocurrencies, causing brutal falls for weeks) was killed for indirectly helping or causing the price of numerous cryptocurrencies to go down, having been found dead in his house.