This seems to increase the amount of work a user has to do in practice. I suspect most users will end up sharing the entire library. From the link above:
> There's also the entirely new option Select Photos..., which leads the user through to the Camera Roll to pick one or more images to share. It is specifically images that users can opt to share, rather than albums.
> Which then means there is an issue that the next time a user wants to post an image, they find their selection confined to solely the ones they specified before. To change that and allow all or just different images, the user has to go to Settings on their iPhone.
My wishlist for fixing photo privacy on iOS:
1) Applications don't need to ask for permission to write photos to iOS folders. These get written to a separate album ($appName or $appDeveloperName by default), e.g. if you save a photo from Twitter it gets saved to your Twitter folder.
2) Photos taken by the iPhone Camera (presumably your personal photos) get stored in a special 'Camera' folder. Apps can ask for read/write permissions specifically here. Eg a photo editing app like VSCO or Darkroom may only need read permissions to begin with, but if it also wants to in-place replace your photos with its edited photos, it'll need read+write permission as well.
3) What about apps that occasionally need access to photos (e.g. social media apps) but you don't want them to have access to everything? The solution is to implement a OS-level photo picker in iOS with a UI can't be over-ridden and which makes clear you're sharing your selected photos with $appName. And ensure apps which want access to photos have to make the user go through the OS-level photo picker.