In short, various copies, suitable copies for oneself

It's not about not bottom-fishing, but about gradually bottom-fishing, slowly bottom-fishing, and efficiently bottom-fishing, in a rhythmic manner. Let those who are prepared go first, and let those with a mature mindset go first, so that the early buyers can lead the later ones.
It is also important to buy at specific prices; it is not blind buying but precise buying, scientific buying, and efficient buying. There should be a strategic approach to bottom-fishing, allowing those who understand trends to participate in bottom-fishing, and letting good communicators take the lead in bottom-fishing, using the power of wisdom to assist in the work while being flexible to accommodate special circumstances.