Actually, "buy and hold" is a strategy used for stocks because there are dividends every year.
As this does not exist with cryptocurrency we cannot use this strategy.
Except if you lend your crypto with interests and you withdraw interests.
If you buy and sell every hour, every day or every decade, this is not "buy and hold", this is trading.
Who told you that "Buy and Hold " is Only for Stocks?mind to explain what can you say for those Who Buy Bitcoin in March when the price falls $4,000 and had sell their coins last week when the price of this coin Reached out $12,300? does Holding is not profitable in this market?
Holding and Buying here in crypto is for responsible and willing to Risk their money.
Trading is profitable and day trading is more profitable than anything in this world so day trader are supposed to be the richest people of this world but what is the reality? Long term holders are the one making the profits in reality because it is not possible to make money constantly from trading so the net profits at the end of years will not be equals to the profits made from simply holding.
actually there are some traders that still profiting in this market constantly mate,they are those traders that focuses in their trading skills and becomes very knowledgeable now.