Board Thread:Support Requests - Community Management/@comment-26037236-20171227065008/@comment-27345308-20171227070513

There is no "block new users" (with less then 5 edits from editing)" option in page protection. There is "block new and anonymous users" option, though, which locks the page so only autoconfirmed users can edit them. Autoconfirmed is a global right, so a user can make an edit on any wiki and after 4 days they will be able to edit any protected pages around Wikia.

If you're having severe vandalism issues, you can request the AbuseFilter extension to be enabled on your wiki and then you'll be able to block edits by what they are adding or how many global edits does the user have.