User blog comment:SliverLotsu/hi/@comment-1776824-20131023205431/@comment-1776824-20131023210710

Rollback is a privilege granted by admins to a few users. It allows us to "roll back" edits to the last version made by another user. It is extremely helpful in reverting vandalism, as it negates the need to go to the edit history and edit a past revision. With it, I can simply undo multiple edits all at once.