Interesting. When I was going to school in ex-Soviet Union we did have a 2 grades. A 'behavior' grade and an academics grade. There was a strong correlation between both but not always. I guess one could distill the behavior grades into other sub-categories as well.
Maybe it was a good system, maybe it was bad. However, the sentence
"Some people still moan that this system was given up, and there are occasional discussion about re-introducing it." lost all meaning when it was used with regards to the Trabi.