When I open a video for watching it later, I pause it immediately when I expect the initialization of the player to be finished. The player has a bug that makes it resume playback when the initialization has actually finished in the background.
YouTube remembers where you stopped watching a video.. sometimes. Maybe. Usually it just plays from the beginning anyway.
The "already seen" marker on a thumbnail is very often missing.
Recommendations are awful.
Subscriptions have been broken intentionally so that you just see a subset of the new videos. Many YouTubers are warning about this problem.
YouTube unsubscribes people randomly from channels and denies that this actually happens.
The volume control slider is hidden by default for no reason.
The bar with the video controls overlaps the video content for no reason. It could simply be placed below the video and be always visible. The current design only makes sense in fullscreen mode. This is an example for harmful consistency in UI design.
YouTube remembers where you stopped watching a video.. sometimes. Maybe. Usually it just plays from the beginning anyway.
The "already seen" marker on a thumbnail is very often missing.
Recommendations are awful.
Subscriptions have been broken intentionally so that you just see a subset of the new videos. Many YouTubers are warning about this problem.
YouTube unsubscribes people randomly from channels and denies that this actually happens.
The volume control slider is hidden by default for no reason.
The bar with the video controls overlaps the video content for no reason. It could simply be placed below the video and be always visible. The current design only makes sense in fullscreen mode. This is an example for harmful consistency in UI design.