@Bluewater Hawks - when somebody subscribes to a subscription they're doing so for their team(s) in a single season. The only way they would get notified of something that happened for a team in the previous season would be if something changed for a team in the previous season - which is highly unlikely to happen. So, it should not matter that people subscribed to a team years ago - which is why we designed the system that way.
Also, just to clarify, MBSportsWeb itself does not have a global distribution list containing anyone who's subscribed to a team. All lists are contained within each association independently.