Automatically up-vote parent comments based on the number of replies in a thread that they produce. Sometimes, when a big discussion forms, comments deep in th

Automatically up-vote parent comments based on the number of replies in a thread that they produce. Sometimes, when a big discussion forms, comments deep in the thread gain 10 or more points while the original parent has just 1 or 2 points. The parent comment is usually "worthy" of the same points, but it's as if people forget to up-vote the parent. The parent should share in the karma for spawning interesting discussions.