I accept that the following is bordering on paranoid wibble...
I just noticed, with the large trade that kicked us back up to 5.85 that the timing is suspicious.
It's suspicious because Mt.Gox seem to kill their live feed process (I hear because of a memory leak) once an hour. The big trade happened seconds before the hour.
Is someone trying to make trades at the exact moment that bots all get disconnected?
Has anyone else noticed what times big trades start?