Please install this extension with the parameters below, unless they're crazy, and then do what you think is right...
Global variables
$wgNewUserSuppressRC false Specify whether or not the new user message creation should show up in recent changes
$wgNewUserMinorEdit true Should the new user message creation be a minor edit?
$wgNewUserMessageOnAutoCreate false Should auto creation (CentralAuth) trigger a new user message?
Version: unspecified
Severity: normal
URL: http://strategy.wikimedia.org