Overlapping threads are just an agreement of everyone to keep looking at old posts. This is harder to orchestrate, because it requires lots of people to change.
Point, but I did suggest several ways in which this could be encouraged (pinned threads, different stated lifespans, shared use of Latest Open Thread feed)
Reducing the visibility of the new threads could help too.
Overlapping threads are just an agreement of everyone to keep looking at old posts. This is harder to orchestrate, because it requires lots of people to change.
Point, but I did suggest several ways in which this could be encouraged (pinned threads, different stated lifespans, shared use of Latest Open Thread feed)
Reducing the visibility of the new threads could help too.