I wonder how often apps are rejected and how often they get through for this rule. I'd much rather use an app that uses my ID instead of making me sign up/sign

I wonder how often apps are rejected and how often they get through for this rule. I'd much rather use an app that uses my ID instead of making me sign up/sign in. It also makes it easier to stop people from posting crap in your app than if you assigned ids on your own.