[edited out]
You're very correct. Any investor who can maintain his DCA approach very strictly has already scored high in his investments process. Dip happens to all no matter your strategy. The elite investors who buy by lump-sum still try to buy at dip likewise those people into DCA method. As far as you have Discretionary income, you can buy bitcoin at anytime between your DCA points.
Most aggressive buys happen at dips even though it's not limited to dips.In all your investments, as long as you intend to hold your bitcoin stash for a long time, you have to be conscious of not overdoing your aggressiveness for the sake of the safety of your bitcoin. Monitor your finances and be sure to attend to your responsibilities. Some people stress life out of themselves in order to buy aggressively which is not good.
Many of us consider that it is not necessarily a good idea (especially for poor people) to try to change his level of aggressiveness based on perceptions of a BTC price dip.
But, yeah, of course, people can do whatever they want, even dumb things, yet it seems way better for regular people to be striving towards making sure that their cashflow management is in good order and to try to figure out some way to invest into bitcoin regularly (such as weekly if possible), persistently, consistently, ongoingly and perhaps as aggressive as they can within their budget... so if they are poor maybe they ONLY have around $250 per month of income and if they are frugal maybe they can squeeze out $10 per week for bitcoin investing... there might be some weeks that are more difficult than others, and the person just has to figure out how much to prioritize investing in bitcoin versuss maybe just keeping some of that money in cash since maybe they have some irregularities and they cannot necessarily buy every week and they have to see how much money they have left at the end of the month prior to being able to make their (periodic) BTC investment.
For someone with very low income, the smartest move is to stay consistent rather than trying to act extra aggressive every time Bitcoin dips. If they stretch too much, they might end up stressed out or even forced to sell their coins later just to cover basic needs, which defeats the whole point.
That is why I liked what you said about cashflow, that if someone has their budget in order, then even a small DCA like $10 a week becomes powerful over time. The trick is keeping it sustainable and not letting emotions push them into decisions that don’t fit their financial reality.