Serfs were not paid for their homes, and in many cases were not allowed to stay in their homes. How does this resemble feudalism?
Also, what's to stop him from kicking those people out if he changes his mind? I doubt Zuck would ever write a honest contract that held him accountable for anything.
He purchased the homes in a free market, they were not granted to him; the residents are not serfs.
So I guess it's like feudalism in that...there's a landlord?
(not to mention serfs could not be bought alone, they could be sold with the land. Maybe you are thinking of slaves?)