Grading Ban

Okay, since the grading button was declined. How about a grading ban? An option teacher or the other adult staff would be able to use if they see a user that always grades wrong or however he likes or something? A small punishment where they would be able to enter the timeframe if they repeat their behaviour, they get maybe 1-3 hours grading ban and if it repeats again for a longer time.

That way people would try to make sure they grade correctly, so that they can continue to do it and get their money and points.