The only way to cripple this process is, as a believer in the value of bricks, to ensure that the price of bricks doesn't fall, by buying as many bricks as possible to create a shortage; such that those promising them cannot get some very quickly anymore. Then, those who made promises must (are forced to) buy your bricks at whatever price you (and all other brick HODLers) would like to charge - because they HAVE to have them.