Must be some really quick fingers on the keypads. LOL.
I have been suggesting that rules against "trading for effect" should be enforced. One suggestion I made earlier was an order size cap: no one should be allowed to trade on one side of the market in a five-minute window in sizes in excess of, say, 0.1% of a company's total float; i.e. if someone wants to unload his 10% of a company (ownership substantial enough to require filing), it has to be done over a day or two, not in a few minutes or a single order; same restriction applies to shorting substantial per centage of a firm. It makes no financial sense for anyone to unload (or buy) in a mad dash like that and trigger a price collapse (or moonshot). This kind of orders should be assumed to be "trading for effect."