I wanted to use the karma mod on my board to stimulate my users for better posts.
The problem was that alot of the users complained because of negative ratings. If one users hates the other he will always rate that user negative, and thats not fair.
So someone had an idea, why not remove the negative ratings! That was a very good idea

If you like the post, you can only give it a +1, the higher the karma, the better.
I've changed it on my board and it's working very nice, but I'm not a mod-writer...
Just an idea...