I wonder if engaging a few facilitators might be worth considering?
Facilitator may not be the right word.....
I go mostly to the Sony threads but have also checked several others and there are many posts with zero response after days (or even weeks).
If a few "facilitators" (or extra Moderators) could at least acknowledge those posts I believe it would encourage people to stay and enliven discussions.
People that get ignored tend to drift away..... just sayin'. 😎