The steady "exceptional" background traffic at MtGOX, that started around 12:00 Feb/7 UTC, seems to be a stream of transactions for 60-70 BTC, about one every 5 minutes or so That is about 700 BTC/hour, 16 kBTC/day. They seem to occur at the low end of the spread.
Would you care speculate on the purpose of these transactions?
BTW, I do appreciate your posts.