I was just about to post complaining about the psychologically demoralizing effect of having 10-12 reviews on the review bar, and vainly trying to clear them while Skritter just keeps showing me old ones and increasing the number of reviews due like Lucy pulling away the football. The professor then helpfully referred me to the FAQ about it, "Sometimes the Review Bar Isn't Exact, What Gives?" which assuaged my concern.
I guess the Professor didn't avoid a post in this case, since I'm posting anyway, but to whoever coded him, it seems pretty effective. Kudos.