I actually was going to start a new thread about making Karma a currency. Happily, I searched this thread first.
I would also add one item to the list. Make all comments cost Karma. If you are saying something that you do not think has the potential to be upvoted, just don't say it.
I would also add one item to the list. Make all comments cost Karma. If you are saying something that you do not think has the potential to be upvoted, just don't say it.