Even if anonymous browsing is disabled with:

$wgGroupPermissions['*']['read'] = false;

The logout page still says:

You can continue to use $wgSitename anonymously

When anonymous browsing is completely disabled, that phrase should be stricken. When some anonymous browsing is enabled with $wgWhitelistRead, like this:

$wgWhitelistRead = array ( "Special:UserLogin", "Special:UserLogout", "Special:PasswordReset", "MediaWiki:Common.css", "MediaWiki:Common.js" );

The phrase should be changed to perhaps display the whitelist, like this:

You can continue to use $wgSitename anonymously, for these pages:

• Special:UserLogin
• Special:UserLogout
• Special:PasswordReset
• MediaWiki:Common.css
• MediaWiki:Common.js

Version: 1.18.x
Severity: trivial