Karma - to see what has already been voted and not to go into the profile

I actively use my right to increase karma, therefore from my experience I propose the following:

1. Somehow designate a user so that you can see if you voted for his karma or not. There are more and more active habra people, and it is impossible to remember on whose karma you have already influenced. It is necessary to climb into the profile. I quite often began to stumble upon what I had already voted for.

How this can look like in practice, let those who like my offer like it say. I myself do not know what is better (and / or) easier: to show that I voted, or to show even WHAT I voted for.

2. My second sentence will probably seem strange to many, but I would like to have the option “hide karma”, i.e. I would love the opportunity to hide my karma. And the rating will remain.
')
PS You know, I myself am terribly ashamed that I am again starting the topic about Habré, but what to do, this project is interesting in itself.

I would also like to remind you that my proposal will sooner or later affect many people, because people with karma arrive :)