at some point they will run out of idiots to borrow coins from and then the market can find the monetary premium instead of bouncing along on the cost-of-production floor (which is ever-increasing and soon to be doubling anyway)
in fact I find strange the many thousands of coins lent out on BFX at a rate always <0.00X%.
Don't these lenders think if they are sabotaging themselves lending at so low rates to shorters against their coins value?
I stopped lending when rates on Polo went below 0.04%/day.