Hexagon Necklace?

whats the story with those...mass dupe?

My best guess is when they added the "collect 'em all" line to explain what these items are, they forgot to remove the original items from the database. No such problem in JMS.

 Spoiler

The problem with the inception of erasers lies elsewhere: they were originally used to obtain "beginners only" weapons which contradicts with the in-game instructions to pick a first job. Now that they're being reused for quests there's no fundamental problem, per se. Requiring NX to finish quests is still dubious since the game is supposed to be "free to play"

off topic: I don't even think you should be able to level from 10 to 11 or 30 to 31 w/o job advancements, N00bs can level up from overkill experience and end up with 99.98% at level 10/30/etc. From there 1 EXP is enough to level you up again and you're screwed.