Re: MyTiki Question
In 1.10, there is a new feature that allows you to set the default prefs for a user.
Meanwhile, until 1.10 is released, you can change in tiki-register.php the line

Copy to clipboard
$tikilib->set_user_preference($_REQUEST["name"], 'allowMsgs', 'n'); into $tikilib->set_user_preference($_REQUEST["name"], 'allowMsgs', 'y');