Thread:Roboartitec/@comment-4547267-20140914054141/@comment-4556650-20140925024815

Check: http://community.wikia.com/wiki/Help:User_access_levels#Rollbacks

Basically, you have the ability to quickly revert vandalism and bad-faith edits. When you see people trolling (making deliberate offensive comments) you can click to "rollback" button to revert them.