Has anyone thought of offering an anonymous crossing network, for say USD/BTC ?
It could be done once a week, and would facilitate people trying to trade large size without
spooking the real-time exchange. Only the crossing price and size traded would be announced
leaving other participants hidden.
They are very popular in established markets, and provide significant liquidity without
boosting volatility.
There's maybe five people in BTC who'd have the credibility to start one. So no, it wouldn't be done in a week. It'd be done as soon as one of them sees it as worthwhile. (Which won't happen because OTC already exists and already does this, and on this note see
here.)