This one-two punch of obtuseness assumes such a lack of familiarity with pool etiquette and the very concept of what a children's pool is, that we're not sure anyone who asks it would be able to figure out how to board a boat, let along procreate.
Disney helpfully answers the first question by informing parents that, yes it is indeed true that you're not supposed to let your kid crap in the pool, but they do it in an almost apologetic way, pointing out that "the United States Public Health Service requires" it. Hey, the folks at Disney would let your kid crap in the pool to his heart's content, but it's out of their hands thanks to the floater-Nazis over at the USPHS.
They do point parents with incontinent children to "the fountain play area near the Mickey Pool." It'll be the one that looks less like a fountain, and more like a stew of poop-tinted diaper stuffing and bemulleted children.