Comment 3 for bug 1510169

Adding notes from chat with prod manager Joe:
* we do want photos displayed even when not logged in to improve the demo experience
* we might therefore create two flickr scopes: one for authenticated experience. this would follow model of other similar child scopes like fb photos and instragram. One for unauthenticated experience. This second scope would always provide pictures and would never provide a login result.
* Using two scopes like this would allow sufficiently fine-grained user control in agg scope settings