Yo, instead of talking about the idea of someone actually doing it, why don't we make this thread a creative writing prompt like those globalization threads?
Imagin it, out on the open ocean, an artificial island is built, its main purpose for being was as an additional food supply for when nuclear winter was becoming it's harshest, but as people move off-planet it becomes less needed, and some crazy person buys it up on the cheap.
They expand it, using the still, slightly intact farming equipment to make a bit of extra money on the side as they build up their dream. A full small towns worth of shops, with a cafe, a large school-sized daycare center, and several luxurious homes. They start a lottery on diaper sites all over, to find those willing to come to her island, with the biggest rule, being that there are no toilets and no adulting!
A few people pop in at first, some are willing to work for their diaper supply, some work at the cafe, others the daycare, some serve as dock workers for imports and exports.
More people come in, never too many but enough to make a community, the cafe's a hotspot, where the owner or owner's girlfriend depending would sit down on a nice comfy couch and feed the good customers some milk from a bottle. (And the best customers can come into the back to... get rid of the middle bottle, if you know what I mean) Some would spend their days at the daycare, playing like kids, or just hanging out in some computer lab-style rooms and have some fun, Just don't lose focus when the daycare workers come around to check your diaper~
An island of debauchery and small-town wholesomeness, what more could someone want?