Not really, if the references are still there the post can be kept in the original thread, depending on your newsreader settings.
I read by thread. Those that interest me are on a watch list. After going through those I take a look at the rest and may put a few new ones on the list.
Maybe you should learn some flexibility and how filters work. My mental filters are usually quite good enough but threads that really go overboard may end up on a kill list to reduce download time.
- YD, using newsreaders since 1995.