actually, smart trader love all of panic seller. its good to buy all coin than keep it until the price is stable. panic seller is give much profit for other people, in a fact, they can make by themself. its no problem if market going to red because of panic seller, because there is a moment to make market green again. many people dont know about what they do, they just make them richest.
Yes, it can trigger a decline in market prices because more people are involved in sales activities than purchases. For most true traders, of course, take advantage of such a market situation to make purchases when market prices are weakening to make a profit because they can hold it for a long time until prices rise sharply again.