Hostname can have many orders: if it's a technical/location name like "dc-room-row" then it's in order. If it's a character name, they could follow the logic of

Hostname can have many orders: if it's a technical/location name like "dc-room-row" then it's in order. If it's a character name, they could follow the logic of the characters: some are leading (frontend), some are smarter (backend), some are... If you had more than 20 children, you would clearly want some logic in naming. People often apply that to twins for example. Anyway, that applies better to "more than a few" groups; Ubuntu did well because they release many versions, and you really rarely need to check against versions from 13 years ago with that release speed. Microsoft didn't need it for Windows because they only had 4 or 5 versions in 20 years.