But banks are trusted institutions as compared to individuals here. So my concern is that, since lenders here generally accept collateral higher than loan amount, what is the credibility they will return collateral when borrower is willing to pay back?
Isn't there should be a system of escrow holding security/collateral?
It makes the transaction will run for smoothly, and we are no need an escrow for that. A key is a trusty person.
Which is a rarity nowadays. Account levels doesn't even matter that much anymore. Anyway, I haven't had a chance to experience borrowing or lending btc in the lending section here but I suppose the borrower gives a collateral with the margin mind, much like the lender's interest rates, so it's a win-win.