Wikipedia:Don't revert without explanation
 | This is an essay. It contains the advice or opinions of one or more Wikipedia contributors. This page is not an encyclopedia article, nor is it one of Wikipedia's policies or guidelines, as it has not been thoroughly vetted by the community. Some essays represent widespread norms; others only represent minority viewpoints. |
 | This page in a nutshell: If you can't - or are unwilling to - explain why you're reverting an edit, it's best not to revert it. |
Avoid reverting without an edit summary saying why you are reverting.
If someone reverts without explanation, you can WP:Obvert the edit, and cite this essay as a justification.