A way to fix the problem would be for the App Store to ban that practice _and_ itself nag the users for ratings, in the less annoying way; like, asking you to rate a list of apps you have been using a lot when you open the App Store, and also asking you to rate when you delete an app.
The typical app store workflow for me is I visit the store to download a specific app I'd like to install. That app will then have to download and install while I wait.
That "while I wait" is an ideal time to ask me to rate other recently installed apps, or an app I haven't used in a while.
I came here wanting to say the same thing. It's a lot like Amazon emailing customers periodically to review recent purchases and making it really easy to do it. I pretty often do that and it works! It doesn't feel annoying either because it isn't in my way.
The key is catching the user when they aren't completing a specific task. People often check email to pass time, which is perfect for this.
That would be a win for everyone.