In my opinion crypto maximalism (which implies libertarianism, freedom from state's control of our money) is not compatible with being a communist or even a socialist, as the implementation of these systems requires always some kind of force being applied by the state to "redistribute" wealth, but maybe someone can prove me wrong.
While you may be right about the incompatibility of communism with bitcoin, such ideological contradictions have never prevented high-ranking communists from living in luxury or accumulating wealth. I suspect there are people all throughout the political spectrum interested in cryptocurrencies, and that those holding seemingly conflicting ideas will somehow rationalize owning bitcoin.
Given that bitcoin is not an end but rather a means to an end, perhaps it is compatible with very different ideologies. In theory, a communist country could hold it as a reserve to boost its currency or to distribute evenly, perhaps.
Of course, the elites have never applied the same rules to themselves that they applied to the masses. But I was talking here about supporters of a communist system from the bottom up, not about the actual leaders who implement the dogma (who as you said are only interested in power and don't really care if they need to apply communism or any other economical doctrine).
I find interesting what you say about holding it as a reserve though, but the moment you plan to distribute evenly it will lose all anonymity and all transactions will be traceable back to the individual, and the whole point of using a cryptocurrency will be lost.
