User blog comment:LegoI3rickI3uilder/Vanlentine Promotions!/@comment-5111283-20130211193817/@comment-4845243-20130211201152

I agree that badges are pointless, but edits are not.

If you don't think it's a good edit, you don't mark it, and if it's bad enough, you should notify the user who made it and explain how the edit violates policy and ask them to stop. If it actually damages the page, then you revert it of course.

You start anywhere- just look at Recent Changes and click on the diff for any edits that have a red exclamation point next to them. Then review the edit, and decide if it is good or not.