Golden Gate Geckos
Mean Old Gecko Lady
To answer the original question, feeding crickets moldy human grade food is very different than mold non-human grade food. Keep in mind that nothing should be allowed to become moist and mold. Animal grade grain products, especially corn and soy-based products like chicken mash, dog food, ferret food, and even monkey chow, may contain grain products that have been exposed to blight, which is a type of mold. This mold can lay dormant in the kernels, and when allowed to become wet it will begin to grow again. This mold may be a type of aflatoxin, more specifically aspergillus flavus, which can be deadly. Crickets can build up huge amounts of this toxin in their bodies with no health risk, but the chronic ingestion of these toxic feeders by the animals that eat them will poison them.
The moral of the story is NOT to allow your gut-load to become wet.
The moral of the story is NOT to allow your gut-load to become wet.