You don't need a system message to tell you this- just drop the last digit on your xp earned. Also, as a result of this, technically your notes/etc already chain, because when you get exp chains, you get more notes too.
No one said anything about needing, I just thought it would be handy seeing the actual profit then guessing when it comes to Imperial Standing, Conquest Points and Allied Notes etc, just leave off the last digit on your xp earned; Short and longer answer, No.

Also adding more to the topic then trying to give out a history lesson would make more for a conversation. Like I said this is just an idea, as for the experience point system. Telling us how much we've earned/chained is handy and that started from an idea.