v.154 – Sword Art Online Update Notes

That's all I got.

How will they ever decide who used it "excessively"?
Are they just going to ban whoever leveled "too fast" for their liking, even if they never set foot on the island?

I'd really rather they close off the area until they decide what to do about it.

As it is, this smells like a mess of poisonable Bigfoot proportions. Except worse, because all classes and levels can take advantage of it.
Nexon reps say they "discourage" its use, but they didn't put anything on the website or in-game about it. Not everyone reads forums or social media. People just hear from their friends in-game that it's godly exp, and they flock to it. And of course, the longer it's open, and the more people use it, the more people can convince themselves that "they can't ban everyone" and do it even if they have read the forum.

Also, I have to laugh at what this does to the hyped and over marketed SAO event (can you say "annoying in-game notices"?). Nobody cares about SAO. Everybody is all about Mr.Lee.