The developers panic!
The App store was an unusual failure. The app disappeared part of the assessments, and in the case of particularly popular applications we are talking about tens of thousands of reviews. Due to the failure rating of the applications has changed, that has caused a real panic among developers.
The crashing in the App Store complained to the developers of many applications, both small and among the most downloaded iPhone and iPad. According to them, evaluation of the applications suddenly disappeared. And it just is not about deleting old reviews of Apple. About the same problem the developers of entirely new applications that are recently introduced in the App Store.
Because of the failure of many applications lost the overall rating. Developers complain that because of this the number of downloads will decrease. What is the reason for the failure is currently unknown. Apple has not yet commented on the situation.