I'm a bit late with this but you might like to hear a developing conspiracy theory about the Yellow Wiggle from the ABC's Self-service Science Forum (aka SSSF or Sisyphus, for reasons that will become clear if you spend more than five minutes reading the posts there.)
They were on to it almost instantaneously. As yellow is the colour of the flag flown when a ship has sickness aboard, is Captain Feathersword behind it all?
I did say it was developing.
