Well, your opinion is probably biased in the fact that you failed at judging the coins that would hit the top 100 of the market no? Well, not blaming you or anything but people have different strengths and weaknesses. Some can immediately observe the possibilities within a coin, and some can't, hence, the difference between trading and holding. Still though, some aspects of holding can be seen from trading and vice versa, specifically judging the future of the coin you are investing in.
Both aspects have their pros and cons, and honestly, it depends on how you judge coins and what type of trading you're in. Holding can be said to be a long - term investment while trading is a short term or day to day trading, and the profits are all honestly left to your own capable judgement.
You said yourself if you haven't made a profit so far but you also say trading is better than holding, how can that be? That is a choice and you are free to do that and if both can make a profit, why not do both? Holding the top crypto also gives you a good opportunity for future profits, if you can choose the right coin for holding it will also produce good profits and when it keeps rolling every day, then filling that time with trading is a good choice, You can do both if you want.
Well, he was holding initially. And based on his experience, holding brings nothing really, that is, if you're bad at judging coins, and in his case, he is really.