Buying the dip is the obvious choice for anybody who is willing to hodl long enough.
The hands should remain still and without any shakes.
I disagree with you here. Buying on dips should not be the original strategy that an investor is using to accumulate Bitcoin for long term because buying on dips requires you to time the market and timing the market is an obvious act of trading. You can accumulate Bitcoin with either DCA, Lump sum which ever strategy you can be able to meet up with. Any strategy that will limit you to buy Bitcoin at any giving period while waiting for the perfect time to buy is trading and before you know it you made end up not buying any Bitcoin at all.
Also, Buying on dips does not limit to continue with your original strategy. You can DCA and still buy on dips if you have more discretionary income, you can as well Lump sum and still buy on dips too. Buying on dip can happen anytime and it is a good way to accumulate but the disadvantage is that you may wait for long before the dip will come and if your investment is a two year accumulation investment the years may elapse but only small amount of Bitcoin you will be having in your portfolio.
I agree with you on this fact that buying on dips doesn't limit on your continuous original strategy, i believe on one thing in life, learning took place everyday of our life, the main fact is that we all know that Bitcoin rise and fall, so buy dips and hodl should not be seeing as a choice but it should be seen as a of buying the dips and hodl, and for Bitcoin to grown gradually to accumulate DCA ( dollar cost average) because buying the dip will come and if your investment is more than three years investment, it will surely come and you will be having a big amount of Bitcoin in your portfolio.