For anonymous users, it's certainly useless, and for most of registered users it's too, as they very likely don't know they belong to the emailconfirmed group - it's cryptic. I had a look at EditPage.php and the part showing the more useful «You have to login to edit» (with a link to the login page) has been apparently removed (if I've understood it correctly).
So you want to translate emailconfirmed?
Nope. I'd like to have the former behaviour. If you look at EditPage -> edit in version 1.10, you'll see the following piece of code:
if ( !$wgUser->isAllowed('edit') ) { if ( $wgUser->isAnon() ) { wfDebug( "$fname: user must log in\n" ); $this->userNotLoggedInPage(); wfProfileOut( $fname ); return; } else { wfDebug( "$fname: read-only page\n" ); $wgOut->readOnlyPage( $this->getContent(), true ); wfProfileOut( $fname ); return; } }
userNotLoggedInPage shows the useful page "You must login to edit pages". However, this part has disappeared in 1.11, and in fact now I think it's a bug. I'm studying if it can be restored somehow, but this part has been rewritten and I'm not sure what to do. I'll report it.
Thank you Javier