Edit: perhaps more detail would help. The story was initially flagged by enough users that it was killed. We unkilled it for reasons I described here: https://news.ycombinator.com/item?id=8711660. That caused the process which is affecting all these stories to pick up where it left off: lots of upvotes and lots of flags, with the flags winning over the upvotes. As a result, the story fell in rank again—but didn't get killed, because once we unkill something flags no longer have the power to kill it.