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...
Ok you can make that argument. But what about when an influx of new whales comes screaming in for the next bull run. Along with an influx of tens of millions if not hundreds of millions of people on the next bull run? Kinda defeats the OP's thesis.