As of now, players do not get a notification when staff or anybody makes a comment on their @bug report. So there's no way to see if staff is asking for clarification or if someone's contributing a relevant comment unless you regularly go back and check the @bugs that you have submitted.
I think that players should get a notification that someone has commented on their @bug report (specifying the @vb number). This could show up sort of like the notifications that a @service-request has been completed, or if the comment happens while the player is offline, the notification could show up upon logging in.
