The tone in newspapers, when I started out as a copy editor forty years ago, was that the copy desk was a place where reporters fetched up after their legs or livers gave out, or a domain of quibblers obsessed with minuscule details--comma jockeys.
Well, I do like to see a verb agree with its subject, and I can punctuate with the precision of a marksman. But the key thing, the fundamental thing about the traditional copy desk, is that it was set apart. It was not connected with the desks that generated stories, and it played no part in their processes. Instead, it was independent, and its members looked fresh at each story, much like a reader.
Reporters work with their editors on stories, on which they come to an understanding of what should be in them and how the material should be treated. The back-and-forth between editors and reporters carries an inherent hazard of developing groupthink. The copy editor, traditionally understood, has not been a part of groupthink and can raise questions of importance about the focus, tone, and structure of the story.
That gives, as former Baltimore Sun publisher Mike Waller once said, the opportunity to raise the most important question that a copy editor can ever articulate: Are you sure you want to do this? Are you really sure?"
One on occasion, a story came to the Sun's copy desk from a department head in which our copy editors identified not only an incoherent structure but a set of passages that could have constituted outright libel, and we defused it, to the publisher's subsequent gratitude. (I used a version of this story, with substitutions for all proper nouns, for years in my editing class at Loyola Maryland, and it never failed to leave the students agog. "You were going to publish this?)
But as the newspaper business declined, the sharp-pencil people determined that copy editors were an expensive frill. The Sun's last copy editor departed in 2019, and some years ago The New York Times, once famed for its copy editing, disbanded its copy desks and assigned survivors to the respective originating desks, where they can resist groupthink, or perhaps not.
We once had a model, and it served the reader well.