By JimbobBEng 
i put 1.5bn into a stock that was level.. it went down.. left it there for hours, it continued to drift down..
Dude, you got hosed. Look at the 7 day chart for ANY stock. You can see these huge investments made by folks (large increase in shares issued), with a corresponding increase in share price in nearly every case. I have yet to see one that went down after a large investment.
For those curious as to why you wouldn't just leave your money there, it's because this increase is a one-time deal. You buy a lot of stock, the stock price goes up, but only for a short time. Then, it continues it's trend as before based on customer demand, the market, and the square root of orange.
I'm no expert, but it doesn't take a genius to figure out that this system of unlimited purchasing isn't good for the game or the market. Without caps, the whole thing is driven by the folks with the most money.
Check the market for yourself. It's obvious in the 7-day charts. Just watch the spikes in shares bought and sold compared to stock price. Folks with only a few million dollars (or even less) can't drive the market in the same way that the wealthy can.
I suggest either to put caps in the number of shares folks can buy (like the old stocks), charge "brokerage" fees to buy shares OR there needs to be other market drivers, instead of demand. The wealthy create their own demand (by simply buying a lot of shares) and create their own money for free. Not a great system (for the other 90% of the players in the game).
I've said my piece. You guys can drink the Kool-aid if you want. I agree that the new market is much prettier than the old one. It's also very nice to be able to hide ALL of my money in the market (where I can get it whenever I want) rather than putting it in the bank. But, the new system is broke. Returns are worse than the risk-free rates from the bank, unless you have hundreds of millions of dollars. The average player can only sit and watch as the richest players screw with the market. Rather than participate, they just go along for the ride.