The best compliment an editor can get from a writer: “I can’t tell that you changed anything!”
That’s the point of editing, really. You’re making the writer look better by making those words flow more smoothly (and sometimes by making those words make sense). You are there to make the writer look good, but you really don’t want to leave any evidence that you even touched the story (or book or article).
If you have ever written anything professionally, you have probably dealt with an editor who insisted on touching every single sentence, rearranging and tweaking and toying with your copy until it was no longer yours. And you were probably full of resentment and may have even wanted to remove your name as the author of the mangled former masterpiece. I’ve been there. And even if the finished product was “better” in some sense, I was not happy or proud or grateful to that editor.
I’ve also been the heavy-handed editor. Particularly as a rookie editor, I thought I had to prove my worth by scattering my red marks throughout every document that came into my possession. The Subversive Copy Editor addresses this in her post titled “Trigger Happy.”
I still follow the “rules” of the English language and make suggestions when I think something really doesn’t work the way it is. And I do plenty of tightening and revising to make things more clear. But those are the changes writers don’t notice. A writer doesn’t realize that you just said in seven words what he used 15 words to say. A writer will read his piece and know it’s well-written and he will probably assume that he wrote it that way. It’s what he meant to say, after all. (And the humble, grateful writers know what you did and thank you for it.)
Another Subversive Copy Editor tip, which to me should be the first rule of all editing: Do no harm. It goes hand in hand with the subtle style of editing I’m talking about. If it ain’t broke, well, don’t rewrite it! You may not have written it that way, but the writer did, and it’s HIS writing.
Tread lightly. Leave no trace. And, if it works the way it is, just let it be.

