> What's clear from this is that Flickr didn't (and doesn't) cover what is the use case for most people: sharing photos with a limited group of friends and family.
I don't understand this point at all. Flickr has a feature for sharing with friends and family, in fact it has a group for 'friends' and another for 'family' or you can use both. I was doing exactly that in 2005 with Flickr though to 2008 when moved that to Facebook as more friends and family were registered there. What they didn't have was all the other social network stuff like status updates, chat, people tagging etc.
I don't understand this point at all. Flickr has a feature for sharing with friends and family, in fact it has a group for 'friends' and another for 'family' or you can use both. I was doing exactly that in 2005 with Flickr though to 2008 when moved that to Facebook as more friends and family were registered there. What they didn't have was all the other social network stuff like status updates, chat, people tagging etc.