It's Apple's playground and they can enforce whatever idiotic rules they want, but I don't see how using their emoji font is any different from any other font t

It's Apple's playground and they can enforce whatever idiotic rules they want, but I don't see how using their emoji font is any different from any other font they provide. IP rules aren't a justification for it. All the justification they need is "We're in charge and we reserve the right to be arbitrary and capricious with app approval," but that doesn't mean I like it.