[@jrv123 Participant 6 years, 10 months ago]

As near as i can tell, no matter whether a reply or the original topic is chosen for the parent of the reply, exactly three meta rows are created in “postmeta” table.

_bbp_forum_id, which is always the row of the parent forum
_bbp_topic_id, which is always the row of the parent topic (never the row of the reply), and
_bbp_author_id, which is the ipAddress which created the reply.

_bbp_topic_id always equals the post_parent column of the topic row.

So it seems there is never any ‘hierarchical reply’ information placed into the post meta table; i.e., everything is always a reply to the main topic – so what’s the point of have “nested replies” or “threaded replies”, depending upon one’s nomenclature.