Interesting idea, but a fundamental aspect of private property is that you don't have to sell it. Maybe someone knocks on your door and says "I just bought you

Interesting idea, but a fundamental aspect of private property is that you don't have to sell it. Maybe someone knocks on your door and says "I just bought your house. Get out." That would be pretty unpleasant. Or, more on topic for this site: maybe they do that with your startup.