If you didnt link the discovery feed I would not have found it in a million years. I dont even know when that was added.
Its not default. A content discovery system should solve a problem, not be a hidden sidetab.
Whats there now is a tiny fraction of what an algo should cover. From what I can read in the info, what you have is essentially a "reblogging" feed. Thats what I would characterize it as. Thats a good start, but thats not near anything that is necessary right now.
RE: Killing Hive’s Social Potential -> POB Based Content Discovery