Everybody have their own choices of looking for money both in crypto currency and in bitcoin,some persons prefer holding while some person's like to trade daily,it all depends on your choice as an individual,and what you want to do,but the reason so many person's like holding is simply because it has no risk involved,and all it's needed is one being able to exercise patience.I love holding my coin but at the same time there are sometimes when one needs to just act fast if he sees that the market will be favourable,that is what puts me in trading,I trade when I have calculated the risk involved,and I make sure I trade when I won't loose,but make profits.
Holding has it own risk, the risk involved in holding is that it might lose its value while of holding. But i agree with you that everyone has different approach as regard profit taking in the crypto market. For me i will say follow what suit you best. Not everyone has that patience to hold an asset for a long time and also not everyone has the discipline to know when to trade and when not to trade.
Since every player in the crypto industry have their own strength and weakness it is best to focus more on where the strength lies and improve on it. One who has the patience to hold stick to holding and those who have the skill to flow with the market trend stick to trading the end goal is to make profit.