I scanned this thread, but not every syllable, so please forgive me if someone has pointed this out.
If a forum is marked with "new posts" as in the brown envelope vs the grey envelope, and you then go in and read one post, the envelope turns grey, even though there are still unread posts. This is contrary to most forums I visit. As long as there are unread posts the forum should be brown, indicating such. I know, nitpicky.