This is indeed a very good advice and things to consider before taking a loan for the purpose of investing in bitcoin or any other crypto currency.
To be honest, I've seen a lot of loans taken and invested in crypto that did not end well, many have lost valuable assets they used as collateral in the process of taking a loan.
I, personally would rather not invest in a coin than to take a loan for that purpose, investing my own personal money gives me peace of mind, for I know that, even if at the end of the day, the investment didn't pay off, I have no body to come knocking on my door to pay them their money back.
On a very rare occasion will I borrow or take a loan to invest in crypto, and when I do, I must make sure it is somebody I know personally, maybe a close relative or friend, whom, if at the end of the day, am unable to repay the loan on time due to some reasons, the persons would understand and not use that as an avenue to rip me off.
I am personally taking loans if its really necessary, but when it comes to investing, i don't think its gonna work. Although we know that there's always better future in bitcoin, but knowing when to make profits in a very unpredictable market will always be uncertain. So if you take a loan for a mere investing, i guess that will give a lot of pressures on your part especially if you have no stable source of income other than your investment.
Bitcoin is a good investment, but taking loans to create bigger opportunities to accumulate more bitcoin is something that i don't see its ideal to do.