Choice of investment strategy really is a personal choice and what works for you might not necessarily work for another, and while I have not problems with buying the DIP, I don't think it should be your only investment strategy, Scaling and/or DCA should also always be a part of any investors strategy as it let's you invest on a regular rather than waiting for a dip all the time, waiting can be dangerous and
had I known ultimately becomes the motto of any investor who missed investment chances while waiting for a dip that didn't happen.
I once thought about buying when the market was more dip but it was a futile thought, the price of bitcoin is designed to be volatile and the best way to avoid missing the moment is to use DCA, so I decided to buy bitcoin every month regardless of the price, I have started it since 2 years ago and I am quite satisfied with the results I get now, the value of bitcoin that I bought with DCA has increased many times over the capital I spent, I am very happy with that, DCA is the best way to buy bitcoin, if there is another concept then it will not suit me.