Trading with loan capital will put pressure on us and for me the results will not be as effective as expected.
I try to be able to understand where the goals of this topic you want from us.
That is just it, trading with Lona can make a trader to even make mistakes, like to exite the market when he is losing and the market later become favorable in a way he could have make some profits. One of the mistakes a treader can make is to collect a loan to trade. The loan will start to yield profit and trading is risky like gambling and this can cause unfavorable situations. It is good to not trade with loan but with the money you have.
You talked so much about DCA, sorry I don't think DCA should be considered a trading strategy. You may want to see it as entry pattern, not strategy.
You are not wrong, DCA is not a trading strategies, it belongs to investment strategy. To buy bitcoin weekly or monthly is an investment strategy, not trading strategy.