What a disaster, at first they were just deleting forum posts but it seems they've even given up on that. They did one quick hotfix with no rollbacks, and the hotfix didn't even fix the exploit. AFAICT the only communication so far has been a single developer making one comment in their discord channel.
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https://massivelyop.com/2023/11/24/everquest-players-are-raising-the-alarm-over-an-economy-crushing-dupe-exploit/