Their argument for this is that the most important parts of every story are the opening and the ending. An editor can not get a good feel for a story unless he reads the entire thing. Others argue and say that if a story is good literature, then nothing else should matter. An important question is the revision styles of fiction magazine editors. Again, each magazine is different, and each editor is different within that magazine.
All editors fix grammatical and spelling errors.
There is no exception to this. When it comes to story structure, and thematic concerns, every editor is different. Some will only edit by subtraction. This means that they will never suggest the writer add a scene in the story. They will only take out parts of the story, or tinker around with word choice and language without imposing their own grammatical style on the authors.