Maybe I'm just privileged but some forums I'm a member of, have a button next to "new posts" that is specific to responses to threads you're involved in. The current "Activity Stream" seems only to show ALL NEW THREADS of ALL USERS. Unless I'm just not seeing it, in order to remain current with threads that I've posted in I have been having to click my own user name, then activity, then the "see more" button on my post. A link to "post replies" would be just - lovely, as I think most of us just use quick reply. That's my suggestion!!!