$wgReservedUsernames = [
'MediaWiki default', // Default 'Main Page' and MediaWiki: message pages
'Conversion script', // Used for the old Wikipedia software upgrade
'Maintenance script', // Maintenance scripts which perform editing, image import script
'Template namespace initialisation script', // Used in 1.2->1.3 upgrade
'ScriptImporter', // Default user name used by maintenance/importSiteScripts.php
'Unknown user', // Used in WikiImporter when importing revisions with no author
'msg:double-redirect-fixer', // Automatic double redirect fix
'msg:usermessage-editor', // Default user for leaving user messages
'msg:proxyblocker', // For $wgProxyList and Special:Blockme (removed in 1.22)
'msg:spambot_username', // Used by cleanupSpam.php
'msg:autochange-username', // Used by anon category RC entries (parser functions, Lua & purges)
];
