BuddyPress.org

Thanks Erich (assuming I am the Matt you were referring to!)

I think you are talking about threaded responses.

As far as I know, bbpress does not do those. Also, (as far as I know) it does not alert you when someone has replied to your post.

I have seen these features mentioned in bbpress wishlists before. Hopefully someday they will get added.

I am completely new to bbpress so I am not sure of their future feature plans.