Well...its a major use case for holding Hive tokens that we've not had before.
Imagine that holders don't have to send all their Hive to the market to take care of immediate needs anymore, they can rather take a loan off it, locking it for several months, while their immediate needs are sorted out with the loan. Eventually they get to pay back the loan and retrieve their Hive.
If there's one major advantage I can foresee, it reduces the influx of Hive tokens into the market, which reduces the amount of Hive in circulation, as long as Hive holders are willing to play the game.
If more tokens are locked through Hive power and through collateralization, it makes the tokens scarce compared to how it presently is. And as long as others are willing to buy, it will positively impact the price.
Just my thoughts