As for beta software, I think bitcoin stuff is really alpha software. It's basically some quant PhD thesis put into practice, and it might end up failing badly. But, like modern art, it might be insanely profitable--for the hoarders. The scarcity value of bitcoins and their cache in the popular imagination makes for an interesting investment proposition. Not unlike perhaps the fable of the Emperor's New Clothes, hopefully without the embarrassing ending for us Bitcoin longs. As for the shorts? TradeFortress is putting my theory in the OP into practice IMO. He/She is basically shorting the market--with other people's money. A king-sized (emperor-sized?) naked short, pun intended. Which perhaps explains the huge trade of exactly the amount that was supposedly stolen, a few days after the alleged theft, as well as the huge drop in bitcoin prices recently. See the other thread for details on this caper (and while you're at it, note the amusing Stockholm Syndrome replies by the Inputs.io victims, which cracked me up but if I was in their shoes I'd be saying the same thing).
Happy trading.
By now if you've read this thread with a sharp eye you can see the point I was making in the OP. Let me make it more clear for you speed readers.
Suppose TradeFortress (TF) is indeed shorting the bitcoin market with other people's money--what's the problem with that? Actually, nothing, for the community as a whole. As I said in the OP, finance theory says shorting a stock leads to better 'price discovery' and a more stable bitcoin price. So TradeFortress is doing everybody but his customers (let's assume he's a guy) that he stole from a favor--bitcoin prices will drop, TF will buy back what he sold at a lower price, and the price will rebound, which makes for a stable price (ups and downs is stable, while exponential growth or 'rocket ship to moon' growth is unstable). But what about those Inputs.io customers? Well chances are, since TF probably had a standard agreement saying he's not liable for anything, at any time--and these customers presumably read the fine print-- and since he did not report any crime to the Australian police (a nice excuse was that the crime cannot be solved, but a better reason is that if he were to report a crime to the police, that report itself would technically be a crime, the crime of false reporting of a crime), then since bitcoin contracts are not regulated, then Inputs.io customers really have no cause of action against TF. The perfect crime (or un-crime if you will). If you're OK with no regulation, then you should be OK with the above. If you don't like the way TF treats his customers, then move on to another online bitcoin wallet service. No crying for you crypto-anarchists! :-P