Thread:Merrystar/@comment-25198081-20150204061939/@comment-11001-20150209032123

Yes, you need to use Special:Contact in order to disable anonymous users.

In fact it is generally not a good way to prevent vandalism; creating accounts is fairly easy. And in many respects it is easier to identify new users if they are all IPs :). It also makes it easier for people to "test out" editing before they commit to an account, so it may help with the growth of the wikia.

In terms of merging, please see the help page for details on how to proceed.