Lots of dump their tokens on the market as soon as theyre listed on an exchange. There are always a risk in holding, since you never know how the secondary market is going to treat a token. But equally, strong projects with good fundamentals have the potential to appreciate hugely in price.
How better do you think?
Some coins need to be sold immediately, because they can only fall in price. But we can not know which coins will grow, but which will fall. Sometimes a coin needs to be kept for several months to earn a profit of x2 or more