I think that is a good idea, but theres a problem.
Theres tons of people pretending to be acads to get attacked for exp. Suppose Academy student X attacks "Academy Student" emoney (i think emoney is a grand hokage), Acad x would then be getting pwned daily by grand hokages.
Instead, to make this fairer on the poor newbies, we should make it so that you only become fair game to the higher ranks if you WIN the pvp. So if gyururu or skidals defeats a kage, kages get the chance to attack them back, but academy students who click the wrong person or get tricked dont have to suffer.
That's why an option to view their bio exists.
It has been proven by the famous scientist Dr Yamak (Borat reference) that being new at something decreases literacy by 100% and increases stupidity by... well... infinity.
Plus, some academy students attack higher ranks just for fun, and some people suicide on higher ranks, this would affect them too. Ok, im not saying we should support the "suicide for more exp" thing, but this is intended to only affect those who stay at level 15, become super-powerful, and attack high ranks. No one else.
And now, a moment of silence for those poor high rankers who get attacked by lower ranks and cannot retailiate, those who will suffer if my idea is not implemented. Their honour (or lack of) is in Neji's hands.