Speaking of #5: A few days ago imgur announced they now have a host of extra (proper) "social" features, comments and the like. It made me realise that #5 is e

Speaking of #5: A few days ago imgur announced they now have a host of extra (proper) "social" features, comments and the like. It made me realise that #5 is exactly what imgur has done, started out as a simple hosting service fuelled by the rising success of reddit and now they're branching out into their own community and removing the reliance on reddit one bit at a time. This definitely seems like the best approach.