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Why does the late-answer review queue sometimes spike in size by over 5000?
Most of the time, when I go to the review area, let's say in the 'Late answers' queue, there are only a few items to review (ex 1, 5, 15), but sometimes this number jump to somethink a lot bigger (like 6.7k). It seems other queues also have this behavior.
Why has the number of review such brutal variations, and not a more "smooth" evolution (for example, about 50 items to review each day) ?