FUD is not always profitable for everyone. You may take the chance and buy back Bitcoin. But, most newbies fear the bear market. Some of them use exchanges to hold their coins and even use stop loss to avoid losing too much. No matter how many times others scream not to hold your coins in an exchange, people still do this and use stop loss so they don't lose too much. We know FUD may create a temporary bear market, and the Bitcoin market will pull back over time. Still, FUD affects the market. Moreover, it makes us lose money.
It is unprofitable in the selling stage because the price has decreased, but it is very profitable to buy because the price is slightly cheaper, is that the person who invests only always sees an opportunity to sell. Of course not, because some of us are also waiting for a downward moment to make purchases and most of the time when FUD starts to develop the price is corrected again and that's where the opportunities we can take advantage of. If people are only good at seeing opportunities to sell, how can their assets increase, because they have never learned to analyze declining conditions caused by a number of things.
Regarding this exchange it is important to consider so that something undesirable does not happen when the exchange is problematic, if they intend to minimize risks then they must avoid centralized exchange and should choose to store in a safe wallet. If the reason is because panic wants to decide on stop loss, so deciding to store assets in the exchange is a silly reason. Bitcoin is the best asset in the long run and why should it panic?