Writing at Vanity Fair, James Wolcott mourns the passing of the Boston Phoenix, including a memorable appreciation of the copy editor's craft by Al Giordano: 

Copy editors were the heart and soul of the Phoenix experience, and I’ve long since thought that separating the two kinds of editing was at the core of the paper’s genius. Let me explain: A story editor checks your facts and challenges you on them, and you debate with him or her and fuss over the content and substance of your story. A copy editor is another species altogether. The copy editor pounds your typing into literature. The typical copy editor could give a crap about your political or cultural opinions or whom (“whom” is a word I learned from copy editors) they may offend. Copy editors just want to make your words beautiful, and have them be proper English.