It's generally advisable to take a long term perspective when investing in Bitcoin and focus on the fundamental of the technology and it's potential growths.
the decision to go for either what you call long term investment which is HODLing or short term investment which I feel you're referring to TRADING depends totally on the individuals choice and experience.
For people that have mastered the art of trading, they might look at buying the DIP end HODLing it as a strategy for the inexperience ones while those that only buy the DIP and HODL might think that traders are high risk takers but the thing is more of focusing on what works well with you and sticking with it. The only issue is that because of the complexity involved with trading and the chances of a new person just starting his Bitcoin journey to experience looses more in trading than he will do in just Buying the DIP and HODLing is the main reason why it is more advisable for a beginner to start his Bitcoin investment journey by just accumulating it and Hodl.
actually of a truth each investors is entitled to there investment decisions but however that doesn't mean that trading is the best option for them because is actually not advisable, however I still wonder why most people always prefer trading instead of long time holding, perhaps it could be there perception on trading because I no of someone that just venture into Bitcoin only because he has the orientation that he could make a lot of money through Bitcoin trading so he was propelled to venture into it thinking that it will works the way he imagine it to be and now he has lost half of his money chasing Bitcoin price movement, so perhaps if most investors especially the new ones on Bitcoin investment will be able to remove the spirit of greed and focus only on the future of Bitcoin there is every possibility that they will surely do well on there investment journey.
People with misunderstanding, these are different things altogether, the difference is like indulging in an activity that does not guarantee a 100% assurance of making money through it, though I see people that trade as though they are into it to make fast money, to me there is no short cut in bitcoin investment profit, most times when you think that you want to outsmart the market, you will end up being outshined by what ever tricks you use, bitcoin investment is meant for people with the spirit of perseverance and patience that's why hodling was introduced, why bitcoin has not collapse is because of the holding system, the premature sellers were bridged with this process, the future and continues existence of bitcoin depends on the hodlers that's why hodling will never go into extinction, people with long term holding mindset always smile whenever the time is ripped.