Simply because the WHALES take the profits whenever there's a 5 to 10 percent growth. The bottom line is Swing trading and Day trading is real and the HODL method is just what it is...
Not the whales but the market would realize that $20k is a very much inflated value for the asset. I'm in for bitcoin but I strongly believe that the $20k peak from last year was just a one-off and market corrections would remain steady at around $11k levels.