Quick responses from engineer

Show more than 1 upstream/downstream article

This is actually in the works.

7. It could be intersting to have a bird's eye/holistic/at-a-glance view of how discussions evolve and what the gist of the discussions were about. 

This feature feels very nature given the structure. However, networks are notoriously difficult to portrait cleanly (hell, we have difficulty depicting trees already, such as reddit comments).