That sounds just like YouTube and how I presumed Vine worked though? E.g. that the majority of users don't set up any follow graph, and that most content users

That sounds just like YouTube and how I presumed Vine worked though? E.g. that the majority of users don't set up any follow graph, and that most content users view is algorithmically-discovered and not like Twitter, Facebook, Instagram where most of the content is based on an explicit graph?