If they could set the system up to incentivize quality rather than quantity, gamifying it could lead to more good edits as well. I'm not sure it's plausible fo

If they could set the system up to incentivize quality rather than quantity, gamifying it could lead to more good edits as well. I'm not sure it's plausible for Wikipedia, but it seems to work for StackOverflow. That said, StackOverflow does not have any seriously controversial material on it.