I built Heartbeat while working at Enova. (Later, I built a successor: 1to4.) It was for monitoring the health of collectives of people, using metrics that could really only be interpreted emotionally. The goal was to get at what really mattered.
The measurements were aggregated and published internally, for everyone to see. Each human's specific data was always private to them, but each collection of people (and each collection of collections) had its data out in the open.
Reception was polarized. People mostly loved it, a few responded with deep, deep caution. It always created active, earnest conversation.