User blog comment:Corai/Xorai's army/@comment-1297940-20091118121507

User rights, explained:
 * Rollbacks can easily undo vandalism fast.
 * Sysops can protect, delete and block.
 * Bureaucrats can promote or demote users.

Personally I don't think you should apply because of edits, but vandalism fighting dedication. It is not a step up. It can also be easily abused, and sometimes, there can be too many rollbacks.

Also, learn grammar.