User blog comment:Doctor98/How to be a good Editor, and not make pointless edits/@comment-1038387-20140119234302/@comment-3247345-20140120043003

I think it's always better to fix than to revert/undo if possible. A lot of times people add things of value that aren't phrased right, in the proper place, etc. Edit summaries are always good if a change must be undone. I do use revert tool to undo an edit that violates policy if it's already been explained why it violates policy (for example if someone adds unsourced material, it gets removed with an edit summary/message wall post then they add it back without a source again; yeah, it happens). No point in explaining things more than once if they don't ask for clarification and just make the bad edit again.