Thread:Bdj610/@comment-26569706-20151004162216/@comment-6268337-20151004235856

You have access on your wikia to an Admin Dashboard. Click on the Advanced tab, and look for the section called "Wikia data and tools." From there, click on the link called System messages.

When you get to that page, enter the word "Welcome" on the box that reads "Filter by Prefix" and then look for the file "welcome-message-wall-user (Talk)" in the name column.

If all else fails, go |here