What Is Line Editing and What Should Line Editors Do?

Here's the latest from Jami Gold, Paranormal Author :

Last month, when I put together the Master Lists of writing craft skills to provide insights for self-editing and/or finding editors, I created a list for each phase of editing:

content/developmental editing  (fix story and character-level issues) line editing  (fix scene and paragraph-level issues) copy editing  (fix sentence, word, and grammar-level issues)

As I mentioned in the Line Editing post, in my experience, line editing is the har...