Actually the word coward doesn't work in the field of economy. Here everyone is running for making some profit, and to make profit we need to be a bit coward for some time.
I wont use the word coward but rather use the word careful because on crypto you font want to be careless. Since crypto leads us to invest with risk, it cant be called coward of you took already the risk but you are extra careful because if you are careless you might lose everything.