I disagree with you on this taking loan to invest or purchase Bitcoin is not a bad idea per say and I think the reason for this has been stated several times and I will still like to inform you again that it is not totally or completely a bad idea to use loan money to purchase Bitcoin. If someone has a good source of income or good sources of income and maybe due to one or two reasons he is out of funds when the Dip comes, taking loan to front load won't be a bad idea because he has more than what can clear up that loan but in other hand if you don't... It will be best you don't take that risk because you will sell premature or panic.
My problem is that you're implying that if someone have a good income, then they should definitely get a loan to buy bitcoins. Having a good income right now does not mean that your income or expenses will be the same in the future. Life turns out to be very unpredictable, and things can happen out of the blue, but the loan must be paid back.
But I don't consider a dip in the market as a good reason to begin borrowing money. If your plan depends on accumulating by borrowing when the price of Bitcoin is down, then your accumulation plan is no longer based on discretionary income, it's based on future income that you haven't earned yet. This increases the risk of the investment.
To me, being more aggressive should be based on improving your cashflow, increasing your discretionary income, or building larger backup funds and not debt. A dip should not be enough reason to give up an investment plan which is intended to be maintained for many years.