User blog comment:ForestFairy/How to Take the Fun Out of Trolling/@comment-26335617-20150605000907/@comment-20644-20150605144610

At that point, the trolls cross the line into becoming vandals, which is an entirely different situation. They may be trolling with the vandalism but they've kicked it up a lot of notches, and it takes more time and more resources (such as the VSTF) to deal with. At that point, persistence is required.

However, a lot of the advice that ForestFairy gave is still useful in those situations. The vandals are still looking for attention, and they're still trying to get reactions out of people. The only reactions they should be given are deletions of their edits and blocks on their accounts. If their handiwork can be hidden as much as possible, such as by deleting their pages with a bot, then that's good too, because their trail of damage will be less visible to the average reader and user.

It'll still take awhile to deal with, but eventually they will get bored and move on.