Also, one more item we need to deal with.
If a grade request was posted in spring of 516 for example, and the character's ledger who requested the grade is current as of spring of 516... grade the thread! This is true even if its now FALL OF 516 AND ITS NOT CURRENT. Why? It was current at the time they requested it. That's all that matters. It's not their fault someone took 6 months to get to their thread to grade it.
Again, each grade you SKIP you need to PM the person as to why they are being skipped. If they are inactive, same thing, the pm might nudge them back into activity.