Hmm...then I don't know. The copy of the folder I made before going on this journey has one per realm I have plus one, which I think was for a realm I'd deleted. None of this really matters; as we've both said, there's no human-useful information here and it's all implementation detail.
I did get it to crash a bunch on a realm where I'm a player. Guess it didn't like me deleting the index. :)
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