On the reasons why many people sell their coin /token, one of us here said that, and i quote, "life is more than crypto." Yes actually i agreed with that statement, and i want to add that there are traders, Holders, even investors into cryptos; these guys has one reasons or the other to sell their token/coins at any giving time.
Some guys want to sell because they need little profit from his or her investment, while some others hold because they believe that the coins /tokens has great potential to grow in the future.
In nutshell, people sell or hold for various reasons and it's not stupidity. Thanks