Give each other points

[h?kkiz]

Are there any hacks that allows users to give each other points?

What I'm thinking of is for example if one user writes a really good post, other people can give the user +1 point, or -1 if the post sucks.. And people can't vote on the same user more than 1 time each day or something like that..

A hack like this would have been really nice..

Thanks