Speculations that this lag and ddos attacks are done so someone can sell off easy are unbased.Everyone can just hit a market sell and will be the first on the queue till his coins are all gone.And if he was doing it little by little he would have seen even more bids show up at every price level.Just like now after the lag is somewhat manageable.The problems are orchestrated to induce sells of many people consecutively who fear it might be late after 10min of lag.All this things are done because it is the only way to acquire coins from long term believers (even they have fears) and some miners because most of them don't trade and they might not show their coins ever on an exchange if the trend is up or at least there is no problems.If ten people want to amass 100k coins like the Winklevoss they will not see some of the coins ever show on the orderbook irrespective of the price so they need to give a reason to some people to show them - some kind of fear.It might not be even about what price the investor want to pay,some coins just won't show up if they are not stimulated.