in reply to Fine grained "a day ago" or "a week ago"
This is, I suppose, a formal (public) application to become a pmdev,
Done. Thank you for volunteering! I'll caution, you, though, that the relevant code node, handle_threaded_nodes, is a very complicated mess, the evil handiwork of one of my predecessors, demerphq, and probably the stereotype of code which underlies this site's reputation for being difficult to maintain. After you beat your head against it for a while, you might decide to write a new view from scratch.
I stand ready to mentor you as you tread el camino del diavolo.