Board Thread:Support Requests - Community Management/@comment-30132035-20181130060020/@comment-9605025-20181201014557

Pages in the MediaWiki space are referred to as system messages. You can use the query parameter Adamantoise mentioned to see which system messages are used on a page and where. You can use Special:AllMessages to search for/browse the list of system messages. However, due to a serious inter-wiki vandalism incident a few years back, Wikia now restricts which system messages can be edited. In order to edit a system message, you must be an admin of the wiki and the message must be on the whitelist. If it is not on the whitelist, you need to use Special:Contact/general to request that staff make the change for you; which they may or may not.