This is a test... I'm not sure how it will go.

If you are replying to a thread, there will be a checkbox called 'As New Topic'. If you check that, your reply will, oddly enough, be created as a new topic instead of as a response. A new post will be created as a response with a link leading to the new topic.

I'm considering adding a bit to posts created in this fashion that says, "this post is a response to foo".

Try it out here, see what you think.