This is common knowledge. Panic seller will sell and dump the price, while people with good crypto knowledge will stay in the shadow and wait for the perfect time/opportunity to fill up the bag.
This is why they say, Less knowledge will lead you to your downfall.
Dumping the price of a coin also leads to it's low market cap including it's trading volume. The reason behind a coin dumps is as a result of big whales in the market triggering their sell order on a coin inother to trapped traders. The whole space is all about patience and getting the right entry for position trading. Knowledge is also the key points in the space if one needs to have average passive profits. Acquaintance with proper trading tips also helps reduce loss and increases gain rate.