However it seems like some people are just looking at the image he inserted without actually reading the rest of his comments.
If you take a look at NCsofts revenue, you notice that the quarterly earnings from Guild Wars alone are be sufficient to pay for all that. Still, NCsoft has high costs, because they have a lot of staff to pay. That's where the money goes. This is where your subscriptions end up, staff and earnings paid to investors. Running the servers has nothing to do with it. MMOs requiring $15 per user and month to keep the server running is nothing but a myth created by the players. No company will challenge this belief though, capitalism, you know. Why educate the user? What's to gain from that?
His main argument is that the cost of running an mmo isn't as high as we believed, and I believe his argument still stands. However somewhere along the line, people twisted the original intent of the article to mean that server and bandwidth costs are miniscule or negligible.
The currency is listed as "KRW in MN". You need to multiply whatever is listed by 1 million Won. The original poster of course understood that (he converted the numbers to USD in his post). But I get the feeling most people glossed over that, such that when I mentioned the converted amount in USD in a thread recently, I got some surprised queries.
There's a reason why all the successful MMOs (and even not so successful ones) are being backed by powerful publishers. If this was some instant gold mine, everyone would have been on it, but it's mostly controlled by corporations which have the necessary means to put the initial capital.