Anecdotally, I think it is the case that if you're a Pro user, and someone else is viewing your photostream, then they won't see ads next to your photo. This pr

Anecdotally, I think it is the case that if you're a Pro user, and someone else is viewing your photostream, then they won't see ads next to your photo. This probably doesn't apply to your photos in other groups, etc. So we both may be right.