Why would I be interested in quotes from investors who as a matter of principle, don't invest in anything that is outside rigid, simple and reliable businesses.
They don't do disruption, they don't do high growth, they are value investors. Why are you giving weight to their opinion on something they are never going to invest in as a matter of principle?
As I said, you don't need to own Bitcoin or any other Crypto. If you don't want risk, don't invest in crypto. I agree that most other cryptos in the ICO phase were scams, but that does not change my opinion on the opportunities more broadly. Scams go hand in hand with fnancial markets, that's not a new phenomenon.
