A bit of a stretch to say Charlie didn't practice what he preached just because he [an extremely well known value investor] did not invest in cryptocurrencies [a market driven by hype and speculation and with unclear underlying intrinsic value].
It still seems too early to declare Bitcoin a success. It’s still primarily a tool for speculation. Buffett and Munger aren’t/weren’t fans of non-productive assets that fell into the realm of the greater fool theory.
What evidence?
Yes, how sad… such a tragic ending.
Bitcoin is on its way to $0, probably within 40 years.