Weak people sell their cryptos when they see dump, strong people buy cryptos when they see dump because they know what is the right time to enter into the market but it is not going to work for short term goals.
This is the common cliché we hear day in and day out when ever we see the market having a correction, first everyone who carry on with these cliché words should understand that the market cannot go up all the time, it is a finite journey and when ever the price rallies you need to be smart enough to book your profit and have the intelligence of entering once again.
Everyone who is not able to follow these finite rules will come up with a cliché of shaking of the weak hands, the market is 10 years old and people need to built their intelligence and understand these finer parts about a market and that the shake will continue for centuries to come.
Even if it goes bearish still no investors have to worry about it because bitcoin price is going to rise sooner or later but at some point it will reach new all time high so everyone who bought at the red will be making profits, and the weak hands will again enters into the market when the price is about to hit peak and loss their money in the next bearish cycle.