Grading Graders on a Curve

How do you correct for easy and hard graders? One suggestion is to normalize the grades of graders -- that way they can give whatever grades they want, then they get renormalized to reflect the fact that someone is an easy grader and someone else is harder. That way, an 87 in a tough teacher's class becomes a 92 before it goes on your transcript. Similarly, a 95 can become an 78 if it's the lowest grade that teacher has given in years.

Here's a link to the article describing this in more (i.e. eye-watering) detail.