Nexon's costumer service and community relationship.

Really? Can you give me a rundown when this occurred? If so, it tells more about their inner workings than anything else, in my opinion.

Well, let's see... there was that one year where the christmas events were a bit different and there was a tree that would grow and explode and drop a lot of stuff for players to loot, which got abused by vac hackers.
And there was the Happyville no-boom exploit (though it was kind of a year-round issue).
And um. tch, I can't remember anymore.