Because the person who answered that question also is the same person who said they don't sell permanent NX in the cash shop because their players would not have enough inventory space...
It does imply that, however, why would they honestly raise the cap even higher when it was raised to 250 within the last year, and no one's even reached it yet? Does that honestly make sense? :S
Additionally, high leveled characters are getting a lot of good stuff. We just got "The Seed" in KMST, and there's a Ninja Castle revamp in the works aimed at level 160+ characters, which they mentioned.
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