It's hard to be a diamond hand, but will try for four years to hold it.
I believe most of them are selling BTC because they are short of cash and they think when the price drops it is better to sell at a 20% loss than to lose more later.
There are still some people who are more concerned with investing without thinking about how emergency funds should be prepared.
Hodling bitcoin for four years is not an easy journey to say, when you don't have a job or something doing to back yourself up financially, not sell your bitcoin for a loss price.
The majority have planned to hodl their bitcoin for up to four years, but the lack of saving up on rainy days made them sell so that they won't get wet on those days it rains. Forgetting that after it rains, it dries up for one to have a smooth journey toward their bitcoin investment. However, one should get prepared on rainy days on time, than hitting on it by surprise