The blog post by Ruben Schade discusses ongoing frustrations with iOS based on his extensive experience with iPhones. He highlights issues such as failed scheduled updates, poor settings organization compared to Android, persistent voice control activation, difficulties with image transfers, keyboard entry reliability, gyroscope performance, cumbersome tethering with Macs, and problematic icon sorting on the home screen. Schade expresses that while some users may not experience these issues, they have been problematic for him.