...and steal the Soups from NewtonScript on the way.
Both Google and DuckDuckGo give me no results so an example would be appreciated.
(Hope I'm not caught up in a prototype joke :)
They don't have the proper expertise and will break something, because it's not possible to enforce data consistency well enough. (Apple's modern OO database is called CoreData, has a pedigree from WebObjects, and its consistency features are pretty hard to use in practice.)
The only connection to editing someone else's data was the ability to add fields to soups for things like Contacts which allowed an easy expansion. Given how many programs on UNIX can alter each other's data, I don't agree with Conway in the context of the file system or soup.