ha ha +1

But it's not always the whole story. Those who actually want to buy are glad to see a wall anywhere they can find it because it lowers the cost at which their market order for a fixed number of BC gets filled. I don't doubt the idea that the motive behind sell walls is to push sellers to sell at a price more favorable for someone who is trying to buy. I bought a sell wall on Bitfloor (when that sell wall was lower than the last price on Gox, at around $10/coin). Not so large as 2K, but large for Bitfloor. So it doesn't always work out for them if that is indeed the intention behind it. Sell walls help the liquidity of the market. Among other things, they also make possible arbitrage bots, which can force the prices at different exchanges to be the same.