Why is people selling a problem? For every seller, there is a buyer. (Or, that is, for every <i>sale</i> there is a buyer.)<p>If something serious is happening in the economy, it seems unfair to me to simply halt trading, forcing everyone who has stock to be stuck with exactly what they&#x27;ve got, leaving them unable to sell and other people unable to buy. If people want to trade their property, why prevent them?