Board Thread:News and Announcements/@comment-25014034-20150924152037/@comment-4752762-20150928113953

Here is a way:

1) Go to inexistent page URL, e.g. http://minecraftpocketedition.wikia.com/wiki/ABC

2) Admins: Click protect, change to administrators only

3) Confirm. Only admins should be able to create this page now