Not just that DCA and short term is wrong but short term Investment entirely is not ideal regardless of what strategy you invest with. Bitcoin doesn't guarantee profits so why expect or rely on short term profits when nothing is even guaranteed in the first place..
I call short term investment similar to trading because if you ask them what they mean by short-term majority of them wouldnt call up to four years and bitcoin investment timeline shouldn't be four years because at that time, you haven't even accumulated up to one year of your income in bitcoin since, it takes one ten years to invest his one year monthly income in bitcoin if he's investing 10% from his income.
Using DCA on short-term is like using a basket to fetch water from the stream. Alankasman is found of using short term in connection to DCA which is wrong, because DCA is for piling up overtime till you reach your bitcoin target and not to buy today and sell tomorrow.
DCA strategy doesnt go well with short term investment at all and you are right that DCA is much more perfect for long term holding than short term holding. With long term holding we can achieve our goal or maybe the chances of our success rate can be at least on a considerable level even if we know that profits isnt guaranteed in bitcoin investment.
Most people are just after the quick gains so they thought of going for the short term mindset so they could quickly make quicker gains from bitcoin but they dont actually know what they are missing out on the long term holding. The traders mindset shouldnt be what we should encourage the new investors on instead the long term mindset should be.
In the case of Bitcoin investment, those who run for quick success will actually end up disappointed at the end of the day, and those who try to succeed in the short term with this kind of mentality will actually not benefit from DCA, because the only suitable investment type for the DCA strategy is the long term.
For those who invest with a long-term holding strategy, market volatility is not a cause for panic or worry, because their only goal is to buy Bitcoin continuously, in this case, market volatility will not create any problem for them, because through this their portfolio will be built at an average price, where volatility does not have any negative effect on them, but rather it is better for them.
But at the end of the day, there is no guarantee that long-term holding will ensure profit, but if we compare DCA to all other strategies in the case of Bitcoin, then in this case, DCA is a much better and more realistic investment strategy than all others, through which, although there is no guarantee of success, the possibilities are much higher, and it can be managed very easily without any worries.