But it feels natural, too. The reality of our lives well before internet is that we don't speak the same topics, or not the same way, whether we're at work, or

But it feels natural, too. The reality of our lives well before internet is that we don't speak the same topics, or not the same way, whether we're at work, or between close friends, or at home, or in public, etc. We have 'circles' or 'domains' in our social lives. That's the one thing Google+ did right, by the way. The one thing 'groups' features are just abysmally bad at modelling in online environments – despite e.g. RPG having solved those mechanics 20 years ago. I think it's on purpose, because blurring those psychological lines somehow must yield higher ROI, in some way or another.