I like KARMA, but maybe if someone give positive or negative karma to someone else should write few words why. Because now it is just THE CLICK. Nothing else.

It will be good if we can click on user's KARMA and see reason for positive or negative karma, including username who rated this user.
Because I am afraid of misuse of this power.

Or maybe mods have to confirm in some way postive / negative karma. Or something like that.