I think the walls are temporary. They are intended to lock in a price while the money is being deposited into the exchange. Then they'll be lifted two seconds before a large purchase of 1200-2000 Btc on Wednesday or Thursday morning between 6-9 am PDT. Watch for a $15-25 spike then there will be a quick sell off by miners to cash in on the pump. A price war then a push down with small walls before another big buy then a push down so miners are forced to lower the price for the next move in two weeks where trading will be forced to $415 for a better buy of 2000-2800 Btc. Makes you wonder...
I think the walls are temporary. They are intended to lock in a price while the money is being deposited into the exchange. Then they'll be lifted two seconds before a large purchase of 1200-2000 Btc on Wednesday or Thursday morning between 6-9 am PDT. Watch for a $15-25 spike then there will be a quick sell off by miners to cash in on the pump. A price war then a push down with small walls before another big buy then a push down so miners are forced to lower the price for the next move in two weeks where trading will be forced to $415 for a better buy of 2000-2800 Btc. Makes you wonder...
If anyone has the order book history of 9-4-2014 for Bitstamp, there were walls, then there weren't any, they can confirm this, check out this chart.
http://bitcoincharts.com/charts/bitstampUSD#rg60zczsg2014-09-03zeg2014-09-05ztgSzm1g10zm2g25zi1gMACDzv