Les codes suivants servent à overider et modifier le comportement du plugin WordPress "Mention comment's Authors"

overide-mca.php

// dequeue styles
add_filter( 'mca-load-styles', '__return_false' );

// dont send notifications
add_filter( 'mca_send_email_on_mention', '__return_false' );

// dont send notifications to user which already subscribe
add_filter( 'mca_filter_recipient','dont_send_user_who_already_subscribe', 100, 2 );
function dont_send_user_who_already_subscribe( $recipients, $comment ) {
    global $wpdb;
    $su = $wpdb->get_results( "
        SELECT comment_author 
        FROM {$wpdb->comments} 
        WHERE comment_subscribe = 'Y' 
        AND comment_post_ID = {$comment->comment_post_ID};", ARRAY_N );

    foreach( $su as $val )
        if( array_key_exists( sanitize_title( $val ), $recipients ) )
            unset( $recipients[ sanitize_title( $val ) ] );

    return $recipients;
}

// enable ajax mod
add_filter( 'mcaajaxenable', '__return_true' );

mcaAjaxChange();

// Personnaliser le corps sujets des emails
add_filter( 'mca-email-subject', 'my_email_subject', 15 ,5 );
function my_email_subject( $subject, $comment, $name, $mail, $titre ) {
    // do stuff...
    return $subject;
}

// Personnaliser le corps des emails
add_filter( 'mca-email-message', 'my_email_message', 15 ,5 );
function my_email_message( $message, $comment, $name, $mail, $titre ) {
    // do stuff...
    return $message;
}