Does listing my spot signal to drivers that I'm not at home?

No - listing your spot does not mean you are not home. Many of our spot owners don't own a car at all so their spot is always available and listed. 

We have also designed the app to be safe for hosts to list their spot. For instance, your address is not publicly displayed on the app and drivers will not know your address until they have actually booked the spot. Oscar also has mechanisms in place to ensure each and every user is appropriately verified.