Lines are becoming really blurred these days when it comes to punishing and pardoning. People who have "rough skin" may not report people because that the reportee is saying just doesn't offend them, though it may offend many others.
There's too many different types of judges out there, I think, for rewards to be implemented. If the worst case scenario, you would see people come to the tribunal and simple press punish over and over again because "majority rule" dictates if the person gets punished. If the rewards are based upon punishments and majority votes, we may see some corruption within the tribunal until that was fixed.
I do have faith that Lyte, Pendragon, RiotNinjaTabby, and anyone else involved can find a proper way to implement reward without risking the validity of the tribunal, but we'll all just have to wait and see.