If bitcoin bank will issue loans in bitcoins at a favorable interest, then I do not mind using such service.
Just need to very accurately choose the time when to take a loan, and when to give
Maybe it possible, but what was the possible collateral you offer, if the Bitcoin bank give a high amount of loans with fair interest how they can assure that you paid it in time? I don't think so if it is possible for now but we still hoping that it will be happen in the future.
Let's assume that we can take loan in bitcoins from bank, first question is how do you plan to return that and in what time. I don't have salary in bitcoins, so I would need to payback that loan in my currency. With rise of btc price, my monthly rate can be higher each month and that can be real problem.
How many of us here can afford loan in bitcoins? It has been explained many times already
And I explained it a few times as well. The real problem is not with you not being able to pay the debt. After all, no one is forcing you to borrow bitcoins (or any other money, for that matter) in the first place, and there are quite a few defaults even with fiat loans backed by crappy collateral (i.e. subprime mortgages). The true real problem is that borrowers will be inclined to intentionally default in case the Bitcoin price is set to rise exponentially since they would be able to buy what they pledged as collateral and still have some bitcoins left from the loan. In other words, it would be highly profitable to default