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Message: <blockquote data-quote="PaulB" data-source="post: 1531233" data-attributes="member: 56853">When a thread is deleted, XF\Entity\Thread#_postDelete() fails to clean some tables, such as xf_thread_watch.  At the end of the method, it cleans thread reply bans:[code=php]$db->delete('xf_thread_reply_ban', 'thread_id = ?', $this->thread_id);[/code]I would expect it to handle xf_thread_watch and xf_thread_user_post there as well, but it seems to skip those.  xf_thread_watch appears to retain entries indefinitely.</blockquote>