Bitcoin has a lot of disadvantages that tend to get overlooked by members here, and if you wonder why it hasn't been adopted by the masses yet, it's because the masses don't need bitcoin. People get so emotionally attached to bitcoin that they fail to see that it's not really solving many real-world problems. Buffett, Munger, and Gates don't make that mistake. All three are very rational and just don't like bitcoin--so be it.
Sad to accept the fact that we do know in deep on our minds on whats the disadvantage of bitcoin but we do just neglect it or not paying attention because we do hope and trust bitcoin and there were people who would really stick on what they do observe and say out their own views no matter what would be the community do have the reaction.Its always have a negative side this is why we do see slow progress of adoption.