Yep, they laid out the rules of the game, took your money, then changed the rules. That's the way things work around here.
But you can't be mad about that, because:
"Anything said on these forums does not constitute an intent to create a legal obligation or contract of any kind. These are merely my opinions which I reserve the right to change at any time."
It's a well know form of fraud called bait-and-switch. The history of BitShares is riddled with bait-and-switch plays. Like when everyone was waiting for BitShares 1.0 and instead got BitShares 2.0...it goes on and on.