$wmgEchoEmailFooterAddress needs updating when the foundations legal address changes...
'wmgEchoEmailFooterAddress' => [ 'default' => 'Wikimedia Foundation, 149 New Montgomery St., 6th Fl., San Francisco, CA 94105, USA', ],
New address found on https://wikimediafoundation.org/wiki/Contact_us from October 1st, 2017
Wikimedia Foundation, Inc. 1 Montgomery Street Suite 1600 San Francisco, CA 94104 USA