@Haejin, I feel like the volume is kind of low on BitShares exchange. When I tried to convert $600 to bitusd, I couldn't seem to do so without offering a price well below the market price. I looked at blocktrades and it seemed like I'd lose 10% (compared to the price of bitshares on CoinMarketCap. How do you convert to USD without losing a lot of money? Maybe I am missing something. I do love the idea though!
Update: I think i figured it out. When I use blocktrades and trade STEEM for BitUSD...I didn't realize BitUSD was at like 1.06 or so... It's actually really close and well worth the time to store crypto in BitUSD when needed.