I greatly appreciate this post mortem. It has me excited for DAB 2.0, which seems pretty likely to either succeed or provide further valuable insights, but it doesn't seem like DAB 2.0 is on the horizon. My current estimation of why from the post and comments is that too many of the participants in 2.0 are worn out, but I wonder if you could confirm or correct and elaborate. Thanks again, both for the effort itself and for the write-up.
Look for how your body reacts when you're thinking about something you already know you dread doing. Same for when you're pleased about something. That will tell you what to look for.
80/20: muscles tensing up (jaw, neck, torso) is discouragement.