...it simply doesn't fit his investment profile or personal character.
No. There are many things Buffet doesn't understand or invest in.
His taking the time time to comment on Bitcoin & call it shit shit likely means just that--he thinks it's shit.
Don't overanalyze
Clearly Buffet is speaking of Bitcoin more out of ignorance than intelligence:
“Stay away from it. It’s a mirage, basically. … It’s a method of transmitting money. It’s a very effective way of transmitting money and you can do it anonymously and all that. A check is a way of transmitting money, too. Are checks worth a whole lot of money just because they can transmit money? Are money orders? You can transmit money by money orders. People do it. I hope Bitcoin becomes a better way of doing it, but you can replicate it a bunch of different ways and it will be. The idea that it has some huge intrinsic value is just a joke in my view.”
He's comparing bitcoin's system to checks and money orders instead ACHs and wires. Nevertheless it cost more to process a $5000 check than $5000 worth of BTC, a postal money order cost more, a bank money order cost more, an ACH cost less but is faster, and a wire cost more than them all and faster than them all but still not faster than a BTC transaction and yet the btc transaction goes far faster.
Based on that alone, his intelligence about the value of BTC falls flat on it's face. Everyone know time is money, which is the only reason why people are willing to pay so much for a wire transfer, or a cash advance on a credit card.
BTC is not a consideration for Buffet because its 'none of his business', it's not what he does, and he could do without it -- for now anyway.
Cryptocurrency is making its way around very fast, anything tied to the internet has a way of doing that. 2015 will be a better year for crypto, but as soon as we clean up the crypto trash (scams, schemes, and foolishness) we will produce billionaires, trillionaires, and quads (quadriliionaries). No other industry can produce such wealth. All we need is security, real security and mega wealth is on the way.