Another interesting post. I'm not sure if I can participate in the contest since the whole concept of blockchain (and bitcoins in general) is new to me. I don't have any bitcoins, blockchain, or any similar online/cypto currency prior joining which is why it is really great to be part of this community -- I read interesting posts and at the same time being part of the steem blockchain movement.
Additionally, case study item 9 piqued my curiosity. I guess it can also be considered as an online nation. The site already has its own currency, and a nation by definition is a group of people that shares and practice the same system.