Board Thread:Support Requests - Community Management/@comment-359947-20200423131451/@comment-25014407-20200423142937

It's a bit of an odd situation, because most wikis either want to disable anon editing altogether (which is possible, as already mentioned), or disable page creation (which I think isn't really possible). I personally think your best bet would be to ask staff to set custom permissions of page creation to registered users, but as Tupka said, there are also other solutions such as AbuseFilter. It's a bit vague as to what is and isn't allowed in regards to that though