I don't know why some people who are into bitcoin investment has more of a profit mindset than accumulating and increasing their bitcoin portfolio overtime and see it grow constantly till they have accumulated their desired amount of bitcoin. Thinking more of profits can mislead an investor in his accumulation stage to the point that he might deviate from being a long term holder to a trader. When you start shaving little profits, it shows some sign of lack of seriousness in you to grow and build your bitcoin portfolio overtime because you are suppose to be increasing it and not decreasing it. You will also reduce the rate of the compounding value of your bitcoin overtime.
I agree with you that when you have reached your over accumulation stage, it is good to buy back whatever quantity of bitcoin that you sold when there is a dip so that you can continue to maintain your over accumulation status overtime, rather than going below your over accumulation status.
All depends on the targets put and what's up in the investor's life currently - some try to hodl as long as they can, some - put targets to realize their profits, no way is the correct one, there is only the ones that you wish to follow to achieve said goals, be it get more BTC or get profit from BTC in the long run and realize it.