Sounds like he wants to have something like Google groups in G+. I don't see why this is a bad idea. In fact i'd also like to see by topic recommended follow list made by people.
My sense is that time-based content consumption (streams) beg for solutions that allow activity to preserve and sustain the good stuff. This is essentially how FB updates work. But in FB there's no navigation back to active posts. Which is where I think G+ could provide a real solution.
...in technology it is data loss. History and timeline.
Lack of archiving and activity indicators is haunting every time I post. Will I be able to go back? Some sites are vulnerably unsearchable, deleterious, bankrupt, block, unfree or datalock: same problem. My voice gets lost.
+ could - devastation
Maybe set a +example.