If you feel that the method you are doing is suitable, that is good because you can get profit from it. I also do the same thing as you, buy when it goes down and sell it when it has made a profit, although the profit is not big but we can get profit regularly.
What method? Buying when there is a big dump?
I think most of people do this, it is just a common way in crypto investment.
Sure, it is a good time to buy when there is a correction, the price of Bitcoin will be quite cheap. But we don't spend all the money, we must anticipate if there will be more dump. Sometimes, there is a further dump after a dump. Anyway, it is okay if we want to take profits when there is a big pump.
Did anyone ever debate or argue on the fact whether it's good or bad to take profit when there is a big pump?, I doubt that.
Many of us know that time when CZ - the formal CEO of Binance; posted a comment on Twitter stating we cant be rich if we don't hodl, well, currently, this has been changed, many people have turned this to "if you don't take profit, you won't be rich".
This is to emphasize on the importance of taking profit in every of our crypto investments, it doesn't matter what crypto assets we are hodling, in a time when the market movements is full of uncertainties, like we have with Bitcoin and the general cryptocurrency market currently, taking profit is how we make money to stay afloat, and possibly have the resources to continually buy the deep when it presents itself.