While katydee's story is possible (and probable, even), it is also possible that someone is catching up on their Less Wrong reading for a substantial recent period and issuing many votes (up and down) in that period. Some people read Less Wrong in bursts, and some of those are willing to lay down many downvotes in a row.
This thread is for the discussion of Less Wrong topics that have not appeared in recent posts. If a discussion gets unwieldy, celebrate by turning it into a top-level post.