One of the things I miss from the old EZboard/Yuku discussion group is the ability to change the subject in the “Topic Title” as things move along.
The original poster has the option of changing the title or splitting the thread, and creating a new thread out of posts to the original thread.
You can change the title by editing the original post. There is a button for splitting the thread (alongside the edit post button) which allows you to name the new thread and select which posts go in it. But only the original poster (and me) has this power. When you split a thread, you can also move it to another forum, from general to meta or vice versa.
I’ve split this thread from the Revenant/Pissing in the Wind thread in the general discussion.