Holders have been using this method for a long time, whether they are day traders or long-term traders. And we have also seen that it is effective, and this is also where traders usually make money. Especially if we know how to feel the right timing of buying and selling.
It is obvious you need to revisit your notes on the DCA strategy to avoid mixing things up. DCA strategy have no connection with day trading and is more focused on buying at regular interval. It can be monthly buying, weekly or even daily buy... but it is concerned with accumulation in such a way that it will be done regularly, in a manner that it will not put one under financial stress.
Holding Bitcoin has its own strategy that depends on personal conviction, target and other factors. While some people are holding to profit from the next bull run, there are people that will hold Bitcoin and even pass it on to their heirs... I happen to be one of those. I have resolved that Bitcoin will be one of the treasure and legacy I will hand over to my heirs and I know there are also others like that.