As stated in the title, what do you think is the biggest problem in the Crypto Community?
Greed.
Fully support you. Greed swallowed all and so people with their hands digging the grave crypto. Miners constantly raise the price of a transaction and don't want to help to develop trade. Users don't want to spend the coins and also inhibit trade with bitcoins. Such actions blow bubbles and make crypto-currencies are vulnerable to the state.