If you own a car with no loan on it or have a car with a higher blue book value than what you owe on it, then it might be a legit finance or 'refinance' of the vehicle. It'd certainly be a more legit usage than what the majority of our LC loans actually get put to vs what they say they're going to use it for. If LC doesn't check to see if you paid down loans or credit cards with your LC loan, not sure how these guys would check into how you spent your lightstream loan.
That having been said, a <2% unsecured loan seems to land on the too good to be true button. That's below the rates for a secured heloc. I could see that rate on a dealership financed loan where the dealer or automaker is subsidizing it. There's a catch.