From Fallen London Wiki

this item makes me viscerally uncomfortable. of all the horrors of the neath, this is the one which does it for me. dining on human flesh and developing a hunger for self-destruction? fine with me! spiders which eat eyeballs, and wasps which nest in them? what fun! getting hollowed out, insides replaced with wax, and being turned wholly into an imperfect simulacrum, almost a parody of what one once was, with any continuity of the self only vaguely in the most abstract sense maintained by sigils and treacheries? sure, why not!

but eating mold? *fuzzy* mold, and a thick layer of it *covering* a biscuit? now that's unthinkable. that's several steps too far. hell, i'm okay with that one de gustibus guy who eats power drills and concepts. but mold is too much. shame, because deck refreshes are useful :<