Another reason why it hasn't been banned yet is that it is generally easier for people in political/legal positions to avoid making a commitment on whether they

Another reason why it hasn't been banned yet is that it is generally easier for people in political/legal positions to avoid making a commitment on whether they're for or against bitcoin by simply purchasing a little bit. All they have to do is purchase JUST enough that they don't care which way it flips. If you take the argument one level deeper, you might come to the conclusion that nearly all rational participants in politics will purchase some amount of it. And if the price rises while this happens, they may personally feel like supporting it rather than destroying it. And since the price will rise while this happens, well, it becomes a bit of a self-fulfilling prophecy.