There's nothing confusing or badly worded about my post at all. The confusion is being caused by people trying to compare this to player-determined values. I don't know where the values on the wiki come from, and we do not reference those.
Every zone has an EXP Modifier which factors into the EXP Formula. Let's say a zone previously had a 0.4 modifier. If we moved it up to 0.6, that is a 50% increase in the modifier. We do not publish the specific values, as it's part of the mystery and should be discovered by the players how each zone stacks up.
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