Hi, awesome plugin!

I have used this code to disallow space in username change

/**
 * Validate user name
 *
 * @param WP_Error $error Error object.
 * @param string   $new_user_name New user name.
 *
 * @return string
 */
function buddydev_validate_user_name( $error, $new_user_name ) {

	if ( $error->has_errors() ) {
		return $error;
	}

	if ( preg_match('/\s/',$new_user_name ) ) {
		$error->add( 'contains_spaces', __( 'User name can not have space in it' ) );
	}

	return $error;
}
add_filter( 'bp_username_changer_validation_errors', 'buddydev_validate_user_name', 10, 2 );

However, there are no error messages shown to the user if he/she uses a space in the username.

Also, how do I remove the header “Change Username” from the settings page? Thank you!!

Cheers,
Derrick