I'm trying to understand how the Activity stream is supposed to work for Shared Photo albums. When I create an iCloud Shared Photo album, and one of the people I shared the album with leaves a comment or Likes a photo, I see it on the activity stream. It also seems like when someone leaves a comment or Likes a photo, *everyone* the album is shared with also sees that on the Activity stream. Right? I just ran into some weird behavior...my wife created a Shared photo album, and I added some photos to it. When a shared person leaves a comment on the photos my *wife* added, only she sees it on her Activity stream. And vice versa. If *she* added a photo and I commented on it, *only then* will *I* see additional comments on that photo. If she added a photo and I don't comment or Like it, then I won't see anyone's comments/Likes on that photo. But I thought the general behavior is that *everyone* on the shared albums "see" all activity? Am I missing something? Is this the way it's supposed to work?