It's called fashion.

Human generated stuff suffered just as much: "if you are a tech startup your domain MUST be .io or you are not going to be taken seriously"

Case in point: author HN user name is "arshxyz", the profile page shows https://github.com/arshxyz which is 404, but https://github.com/arshzip works and matches submission domain - author forgot to update his profile to the new fashion. An example of the fashionable ".xyz" becoming uncool and being replaced with new coolness ".zip"