If you understand the evolution of money and tulip investing, it all makes sense.
you need to understand they some how fear this tech because its slowly kill the value of paper its like uber to taxi....
They see this as a threat but we see bitcoin as a good technology and thats why it keeps on pumping. Warren hate this because its decentralized and he cant control the mind of people, same belief with other government and companies especially banks. The evolution of money has gone so far, and it bring us to the technology of cryptocurrency which is good right now.