The reason sites do gamelike features like this is because it makes some people care and therefore participate more. Setting a metric which causes poor quality

The reason sites do gamelike features like this is because it makes some people care and therefore participate more. Setting a metric which causes poor quality contributions or is damaging to participants is a bad thing. I'd guess a steak of 4 day weeks would be more productive. Personally if I cared about this metric I would just set something up which held onto Friday's commits and pushed them out over the weekend.