Ah, neat, you found exactly what it is. Although the LW version is a bit stronger, since it involves thoughts like "the cause of me thinking some things are moral does not come from interacting with some mysterious substance of moralness."
That's it? That's the whole takeaway?
I mean, I can accept "the answer is there is no answer" (just as there is no point to existence of itself, we're just here and have to work out what to do for ourselves). It just seems rather a lot of text to get that across.
From Costanza's original thread (entire text):
Meta: