Sounds like an opportunity for arbitrage that would correct the problem. If "house flippers" start using these low prices to make a quick buck, either Zillow or homeowners are surely going to cotton on and things will settle back down to fairness.
But what could a homeowner do about it? If Zillow makes your house look a lot less than what it's worth, so nobody wants to buy it for the proper price, you can't do anything. That's exactly what this lawsuit is about.
They're not even suing for money right now, they just want the price for their house fixed so they have a decent chance at selling it.
