Art came up with it. It's a way to reward those who help out on the forum. Your reply to a thread could be simple or very detailed. But, if it helps the person then you get rewarded. The staff of the forum decide if the reply is worth rewarding.
Here is the link to the sticky about it: http://www.hostingdiscussion.com/hd-announcements-help-feedback/25183-being-helpful-pays.html