Lower flood limits

- 20 seconds for any OP
- 5 seconds between posts with the same ip

inc/instance-config.php

@@ -86,8 +86,8 @@ $config['cookies']['salt'] = 'MGYwNjhlNjU5Y2QxNWU3YjQ3MzQ1Yj';
 
 $config['search']['enable'] = true;
 $config['flood_cache'] = 60 * 15; // 15 minutes. The oldest a post can be in the flood table
-$config['flood_time_any'] = 40; // time between thread creation
-$config['flood_time'] = 30;
+$config['flood_time_any'] = 20; // time between thread creation
+$config['flood_time'] = 5;
 $config['flood_time_ip'] = 60;
 $config['flood_time_same'] = 60;
 $config['max_body'] = 100000;