Good deal. I guess a minimum of 5 posts in order to give karma is not too bad.
I personally don't like the fact that negative karma has been disabled. It's like Facebook - you can only "like" something, you can't "dislike" something - but we all know that people dislike things just as well. I don't like trying to create a feel-good everybody-gets-a-trophy world when we all know that's not the way life is.
I use other forums that have negative karma, and at first, some users would abuse it in a flame war. But after a while, it became a good tool. If some newbie gave karma to a user that suggested something incorrect, we could counter that with negative karma.