The crazy thing about Strike BTC loans is that the ₿ you put up fluctuates more than any other kind of collateral.
Buildings, Gold, Cars etc don't change in value much while you loan against them. Few ultra wealthy use stocks that may have a margin call but rare.
Imagine you went to the pawn shop with a gold watch and depending on where you were in a four year cycle you would have to come back with another gold watch just to cover the current loan. Never gonna happen.
The timing of these loans and the taking of new loans to cover the old loan is a tricky market move that I don't see myself taking at this time.
Square business loans give me access to cash today that I pay off with daily sales, no collateral. Way better fiat leverage. I don't see anyone but myself talking about this.