I think that being a writer first, an editor second, is a good combination. The written word is a writer's baby. To watch a red/blue pencil do damage to carefully constructed writing can cause actual physical pain. When I'm editing, I keep that fact in mind. It helps me to avoid making edits:
- For the sake of change
- To make it read like I would write it
- That would change the author's "voice"
Writers tend to appreciate all the above considerations. Remaining a writer first and an editor second, for me, is the best approach.