nah, it's not currency, in her case it's more like a catalyst for entertainment. as for why anyone else would want some, i guess it's the same reason for getting any other kind of porn, but with that added bit of realism or amatuerism or something
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if the radiance of a thousand trolls
were to burst forth at once into the sky,
that would be like the splendor of the mighty one
now i am become rollo, destroyer of threads