Here are a few others:
includes/includes/functions.php Line 58.
return $result ? $result : 0;
wp-statistics.php Lines 111-140
All these add_menu()'s should have unique
'id' => 'wp-statistic_menu-001',
wp-statistics.php Lines 223
$log_type = $_GET['type'];
$log_type = @$_GET['type'];
is good enough but
$log_type = preg_replace('/[^\w-]/', '', (string)@$_GET['type']);
is a lot safer if your code morphs in the future.
The problem is people use WP_DEBUG, often with backtraces, to develop other plugins. So if yours is emitting a bunch of stuff, it gets in the way!