Videos that I've viewed (and even voted on) are reappearing in the queue when they are requeued, in spite of the "hide videos you have viewed" option being checked. Is this by design? It doesn't make much sense, as once I've viewed a video, that's it, I've seen it. The whole point is so that we can filter out everything we've already seen, so having it show up again defeats the purpose.

[correction] It is not only videos which have been requeued. I haven't found the common thread yet.