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.
Traders are not hodlers anymore because as they are into buying and selling at any little profit they see in the market. It's not about sticking to what what works for you . The thread is named buy the Dip and Hodl for a reason. Anyone who see those who are buying the dip and hodl as inexperienced ones don't know what what they are talking about. Is Microstrategy inexperienced? Hodlers has been the people who has recorded massive profit in bitcoin. So for me I don't see anything like inexperienced in buying the dip and hodl.