i had the same idea...
if i get a commendation from a really bad player wich i never want to see again i am stuck with him?
either way, i really really hate the whole idea. it would also lead to the situation i would give LESS commendations. now i give them away after every instance if the people where at least average. there is no reason to not give someone a commendation if they don't totally suck.
the whole idea is not an improvement - it's the opposite
