Extension Description: When editing the subject of the first post in a topic, all subsequent posts with matching (Re:) subjects will also be updated to the new subject.
- Renaming the first post's subject will update all matching replies to the new title. By default, replies with subjects that match the original subject will be updated (replies with a subject that a poster already changed or replies/posts merged into a topic from elsewhere will not be affected and will retain their unique subject titles).
- Admins and moderators have the option when editing a first post to update all reply subjects (including non-matching subjects) to match the first post's subject (changing the title is not necessary for it to update the reply titles).
- The last post's subject displayed on forum index will also be updated (if applicable).
- Forum based permissions allow you to control which forums and users can use Smart Subjects
Extension Download: https://github.com/VSEphpbb/smartsubjects/releases
There is nothing to set up or configure. Just install it and relax. Should work with any version of phpBB 3.1/3.2.
Based on the response this extension gets, I will decide on developing this further.