Reddit answers to shareholders and a board of directors. Each fediverse instance is run by its owner and negotiates with other instances to federate.
If some bigshot wants to own reddit or rule it like a totalitarian asshole, he can buy it and vandalize it if he wants to. If some bigshot wants to own the fediverse, good luck buying the thousands of instances that exist and they still wouldn't get us, because we'd move to or create new instances.
True, but if you wanted those things before AirBnB, they existed, they're called aparthotels e.g.: https://www.booking.com/hotel/es/art-las-palmas.es.html?label=gen173bo-1DCAMYsQIoggJCGmxhcy1wYWxtYXMtZGUtZ3Jhbi1jYW5hcmlhSApYA2i7AYgBAZgBCrgBF8gBD9gBA-gBAfgBAogCAZgCAqgCA7gCp7PVpQbAAgHSAiRkYWQxZjI5NS1hMDBhLTQxMzYtOTI3OS1jNWM1OTczYjAxYWTYAgTgAgE
with a kitchen, washing machine, etc. Very common in touristy areas for decades.
The main difference between an AirBnB and a generalized hotel is that the former is supposed to be inhabited by the owner most of the year. The others are hotels pretending to be something else.