Creighto--
I will borrow 500 bitcoins at 100% per month from a payday advance store (or, more technically, from the person who can arrange such a loan for themselves and prove it) as long as the loan is denominated in bitcoins.
does this makes my original loan look less usurious?
and careful when you say your offer is better. your loan requires collateral.
That's a strawman argument, and one that I'm not entirely sure is even relevent. Why does it matter what currency the loan is denominated in if the rate is so high?
Yes the currency the loan is denominated does matter. Digital USD are very traceable. But you can buy things with bitcoin with privacy, such as secret offshore domain names, and other things listen in the bitcoin trading section that would be much more difficult to buy with USD. Also, USD are not a very good hold of value...
Dollar Slides After Fed Statement, so you don't want to have your money denominated in USD. Also, if you are buying something denominated in bitcoin with USD, the USD must first be converted into bitcoin, costing some currency exchange transaction cost and possibly revealing your identity in that transaction. Oh yeah, and bitcoin is more of a Universal Currency (like gold/silver and unlike USD), since it can be used anywhere there is internet connection in any country, without needing a bank account or registering your name with authorities. So yes, what currency the loan is denominated in is important.
Also the fact that a loan requires collateral is NOT a strawman. In lending agreements,
collateral is a borrower's pledge of specific property to a lender, to secure repayment of a loan. If you use collateral for a loan, then you will have to hand that piece of collateral to the loaner if you fail to pay back the loan. This is worse than just loosing points on your credit score. So naturally, a lack of collateral will have to be compensated by higher interest rates.