Because he doesn't know how to play the game, or he lost all his money in AMBS, MONI and IBIO and doesn't have enough resources for a broker to allow him to short Todos.
Great point, though. All these clowns who claim to have been so right all along, not a one of them made a dime shorting. I guess they weren't as confident when actual risk of getting their asses handed to them in a margin call was present. Easy to bash when nothing is at stake. Not so easy when you back up your conviction with taking a plunge. Shorting is not for the weak minded. You can lose your ass real fast if things move the wrong direction. But seems this clowns already lost their asses prior to this, so one can understand the hesitation to act on their sure thing.
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