CryptoMediaNetwork Why would you sell them right back? That would not make any sense for you to do that (that would be like buying BTC on coinbase and selling it right back). There are many reasons to use WSD such as
1) A cash option for crypto traders. When the price of BTC, XLM etc is high, you can sell the crypto and buy WSD, which is always equal to $1 USD, so you can then use it to buy back into your cryptocurrency when the price falls
2) A currency that can be used for payments and purchases. Merchants do not want to accept BTC, ETH, XLM etc because they do not want the volatility. WSD can be accepted worlwide in seconds (due to it being on the Stellar network), but with no volatility at all
3) WSD is also the on/off ramp directly into the Stellar network. You can buy WSD in fiat, and then exchange it into XLM. You can do so on the SDEX (as you have noticed) and also directly through our White Wallet platform (think of this as GDAX=Sdex while White Wallet=Coinbase. You can also easily turn your XLM into WSD and then cash out with a US or international wire in USD. Before this you would have to trade for other crypto and then use coinbase, where you were limited to $500 to start and even top traders cannot get more than $50,000 in withdrawals. WSD purchases in fiat and redemptions are unlimited.
In regards to the order book/liquidity, it's the same thing in BTC or stocks, there is a spread between the buy price and sell price (same on Coinbase, Bittrex et), and that spread is set by market participants, not by Bitcoin, the company whose stock you're trading, or in this case us. Going forward, of course there will be more liquidity to the system as more market participants enter it. You are in fact free to place your own orders to buy/sell WSD at any price you wish.
