Its not that holding is bad, its a matter of how long its going to take before you make that profit. You might buy Bitcoin or any other cryptocurrency to hold, but the next two years might not be so good for that cryptocurrency, and you wouldnt make profit through out the two years till the perfect time comes.
So, if you want to HODL you should ask yourself if youre ready to have such patience till the price of the asset goes up. Take your time to check the chart of Bitcoin from the start to now, you will notice that lows for every year mostly higher. We all know very well that those who invested earlier made profit after almost ten years, what of those that couldnt have patience till then? Lol they probably missed out.
Hodling bitcoin or other cryptocurrencies is far faster than earning other assets like holding some stocks in which volatility is slower compared to cryptocurrency. Trading cryptocurrency is faster than hodling obviously if we are talking about the possible profit you can earn in a short span of time but I think that hodling is safer than trading it daily if we are talking about long term especially if you can see that a certain asset has its own time that it will give you a fortune if you hodl it.