Conversation and nomadlife
I will opine that this has not happened. Instead, it's been a lot of 1-way talking. Few posts actually build on each other.
Additionally, many of the big voices within my circle have fallen rather silent lately, and a few others I think would be of value have failed to find their tune. This is not judgmental, but rather observational and worth noting. These voices often act as water coolers around which many others stand.
Why do you think it turned out this way? Do you think it could be different? What environment is optimal to you?