Nexon has no control over their economy. They simply sometimes are able to crack down on the hacking client that is used by most of the botting population. Recently they cracked down very effectively and hacks were shut down for a while. They have been online again since last week. I'd say mesos will start going down again shortly. Because of Nexon's absence in regulating their economy, you don't realize how much you are relying on botters.