I don't think there's a way of automating the copy-paste. The section headers are top-level comments in the thread. The People and Klatsch section we're in now, for example, is headed by comment

http://www.eurotrib.com/comments/2009/5/9/12218/40958/7

If you wrote a macro introducing the http://www.eurotrib.com/comments/ bit which is invariable, you would still have to copy-paste the variable part 2009/5/9/12218/40958/7. It's attributed by Scoop when the comment is posted and can't be known in advance.