I think social graph segmentation will prevail in coming years. Traditional platforms create a superset of all your social circles (friends, work acquaintances, family, peers), which--in my experience--makes it awkward to be yourself.
Furthermore, pooling social circles as such tends to fuel a social competition that distracts you with vanity metrics (e.g. likes/followers) and sucks the fun out of connecting with others.
I'm building a product called Saturday[0] to solve this problem. It's a video app that's built for groups. You can create private groups and any member can add videos they capture with the built-in camera.