When you are just getting started, you likely are forced to buy at any price.. perhaps for a whole cycle, and maybe even for two cycles.
When you are just getting started, you might not really know if the price is rising or falling, so if you don't have any coin, then the ONLY way to prepare for UP is to buy some coin. If you don't have any (or many) then you may well not be adequately prepared for up.
Long term HODLers (and BTC investors) might not preoccupy themselves with "taking profits," since that surely comes off as a trading term, yet if someone is bitcoin for a long then, his BTC portfolio has decently good chances of being in profits, and he ends up having more options in terms of selling, yet it can take 4-10 years or longer just to build up a decently sized bitcoin portfolio, so if someone is building his BTC portfolio, it may be best in his interest to just keep building up his BTC portfolio, whether he perceives the BTC prices to be going up or going down, and then perhaps after 4-10 years or longer reassess in terms of where he is at, whether he might want to change any of his strategies, and/or whether he might want to start to sell some of his bitcoin - which I would not consider to be taking profits, since why the fuck would someone want to spend 4-10 years or longer building up a BTC holdings and then to sell to either consume all of it or to get into some inferior investment?
For beginners of course they don't have to think about the price when doing it for the first time because if the idea is implemented for the long term of course they will buy every time with DCA. If beginners measure profits quickly I think they don't understand how to invest properly because investing in bitcoin takes time to achieve satisfaction, either profit or satisfaction with Bitcoin ownership.
Indeed, there are some crazy ideas that are implemented by beginners because they want to have bitcoin quickly so that lump sum purchases become their idea. Although that is a fairly appropriate step, but if for the long term maybe it can be bought gradually because I noticed many good moments that can be utilized such as down 10%, down 8% and down 20%. So that opportunity can be used to buy aggressively.