User blog comment:Aphrodite Sweetheart/September's blog!/@comment-17292221-20130929083029/@comment-25152063-20130929083342

Rollbacks are important. They can revert edits with the click of a button, and they can revert any edit. If there's a vandal attack and a rollback is important to have to revert the vandalism. Administrators can then block the offending users and don't have to worry about the edits.