(Okay, I've figured something out - when people hit "reply" or "quick reply." then the subject line of the new post comes from the first original post. If they hit "quote," then the subject line comes from the post they are quoting. Ergo, if I adjust the first post's subject line and add the notations, all subsequent replies will have said subject line, UNLESS they are quote replies. I think we can live with that, and that is why the first post now has the notations in its subject line.)