They can't do anything and they won't admit or say anything regarding this huge issue.
bots farm mesos -> the guy who run it sell it for dollars -> he uses the dollars to buy nx -> character 40k+ main stat.
so eventually nexon do getting what they need.. money
Please do not make this discussion into FUD by declaring what Nexon's intentions are. You can complain about hackers without resorting to ridiculous conspiracy theories, thank you.