Thread:VanillaDark/@comment-5956954-20170917231657/@comment-27345308-20170922220540

It can detect certain things and then do one or more of the following: It's called AbuseFilter. If you're encountering vandalism on your wiki often, you can use the contact form to ask Staff to enable it on your wiki. I don't know the likeliness of them enabling it.
 * Warn the user
 * Prevent the action
 * Block the user
 * Block the user's /16 IP range
 * Remove the user's autoconfirmed status
 * Wait until the user does the same action specified amount of times in a specified time interval and then execute other actions

To write the AbuseFilter rules you would also have to learn the AbuseFilter rule format; you can read about it on here.