User blog comment:Oeboinez/How do you edit the "This user is currently blocked across the Wikia network." Message/@comment-1038387-20160818154211/@comment-24055022-20160818183546

I found them. They are MediaWiki:Edit-account-closed-flag and MediaWiki:Phalanx-sp-contributions-blocked-globally, but they're not whitelisted, so you'll have to ask Staff to change them for you.