Nope, hodl isn't the only strategy for Bitcoin but it's for those who are scared of trading it. Only those who want to play safe go that route. Otherwise, one can safely trade to increase their quantity if they've the trading skills for it.
Hi, Mpamaegbu. You say it as if it were an easy thing (like when you say "safely trade"), and it is not, it is rather easy the opposite. In the stock market only a small percentage of traders are able to make money in the long term. I speak from memory but the percentage is less than 10% and in the crypto market it will be similar or worse, with all the volatility there is.
On the other hand, HODLing Bitcoin has given an average return of over 150% per annum. If we take into account that Buffett has a 20% return over the long term, not bad at all, eh?
Sorry, hodl doesn't grow or increase your Bitcoin. It only increases the value in price (that's if a bull rally occurs) and it can also decrease the value in price (if a bear rally occurs).
I could say the same about trading. Only increase your Bitcoin if you are one of the small percentage of traders who are able to sustain profits over the long term. If you're like the vast majority, you're going to lose Bitcoin.