It is actually important for us to know that people invest in bitcoin for different reasons, and also, some people don't have as much money, and they invest the little they have, expecting to sell and withdraw the money as soon as they are able to see some profit on it, doing this is not a crime.
I mean, we respectively own our money and can do what ever we want with it, investing in bitcoin and hodling it for a long time is the best way to profit greatly from bitcoin, but the fact remains that, there will always be short term investors, and it doesn't matter how much we try to convince investors to leave their bitcoin for long term, those who will cash out on short term will still do, and this is possibly because, life is not stable, one might plan to hold his or her bitcoin for a long time, but when life presents an issue that requires a lot of money to solve, and they can't raise such amount of money without selling their bitcoin, what would you expect such a person to do? This is the typical experience of an average bitcoin investor, I myself have been in such situation a lot of times.