I prefer a structure that either doesn't have a required subject line to every reply, or one that by default uses the initial subject line unless the replier decides to alter it.
The way that it is defaulting now, using the first several words of the response, is redundant and awkward.
Received the following error message when I tried use the Mark All Read button on the main forum page:
* warning: pg_query(): Query failed: ERROR: syntax error at or near "h" LINE 1: DELETE h ^ in /export/drupal/includes/database.pgsql.inc on line 139.
* user warning: query: DELETE h FROM history AS h INNER JOIN term_node AS tn ON (h.nid = tn.nid) INNER JOIN term_data AS td ON (td.tid = tn.tid) WHERE h.uid = 37 AND td.vid = 1 in /export/drupal/sites/all/modules/advanced_forum/advanced_forum.module on line 1097.
* warning: pg_query(): Query failed: ERROR: duplicate key value violates unique constraint "history_pkey" in /export/drupal/includes/database.pgsql.inc on line 139.
* user warning: query: INSERT INTO history (uid, nid, timestamp) SELECT DISTINCT 37, n.nid, 1286531555 FROM node AS n INNER JOIN term_node AS tn ON n.nid=tn.nid INNER JOIN node_comment_statistics AS ncs ON ncs.nid = n.nid INNER JOIN term_data AS td ON tn.tid = td.tid WHERE (n.created > 1283939555 OR ncs.last_comment_timestamp > 1283939555) AND td.vid = 1 in /export/drupal/sites/all/modules/advanced_forum/advanced_forum.module on line 1110.