The mysocialfabric idea is interesting, the only problem I see with it is that there is a significant barrier towards adding somebody as a contact (you have to

The mysocialfabric idea is interesting, the only problem I see with it is that there is a significant barrier towards adding somebody as a contact (you have to configure an avatar for them - what if you have never met them in person and don't know what they look like?) and I don't see how it scales (what does the screen look like when you have 200 contacts) especially on a mobile. Thanks for the answer, thats an interesting way to do it.