So what do you think about the Apple rule that FORBIDS a developer to inform the user that there is a better deal on their website. IMO the above is disgusting

So what do you think about the Apple rule that FORBIDS a developer to inform the user that there is a better deal on their website. IMO the above is disgusting, illegal, anti-user crap, they prevent that you the user get informed about something that could benefit you but might make Apple lose some money.