Once upon a time, if ever a publication, book, paper, etc, contained a grammatical/spelling error it was pulped and republished.
Nowadays, because money is the criteria, incorrect usage of the language, is being forced on to readers.
Imagine the damage, this is doing to the current generation, who are battling to learn survival skills, let alone be able communicate.
Pommies, are all those from over there and Yanks, are all the other mob from the other side.
We haven't got onto center, color, armor, etc which your cousins insist is correct, it's not even Oztralian.