Different reasons for different people. There are several camps of BitCoin haters: (1) There are people who think it's a pure speculative bubble or pyramid sch

Different reasons for different people. There are several camps of BitCoin haters: (1) There are people who think it's a pure speculative bubble or pyramid scheme. (I disagree because it has utility.) (2) There are also people who point out that it's a deflationary currency and therefore broken. (I sympathize a bit with this view but it's not enough to make me dismiss it completely. I think this might be a solvable problem.) (3) There seem to be some who just take a contrarian position against things that have received a ton of hype or that are too fashionable.