alt Hacker NewsApps can only show you the Apple's dialog for rating three times a year. Many apps first show you their own popup/dialog asking stuff like "Do you like this app?" and only if you click "yes" there then they show you Apple's dialog. And they can show you their own dialog as many times as they like...
Yea, this dark pattern should be disallowed. Apps also do this before they request permissions (like for location and so on). First, they pop up their own dialog to "pre-flight" the request to use location. If the user says NO, they don't even ask using the official API. Only if the user says YES to the custom dialog do they shoot their shot with the official API. Super annoying.