Just a heads up for anyone using the worlds most customer-hostile exchange.
SBD deposits to Poloniex are not happening right now. No warning. No statement on Twitter.
If you haven't been able to sign up for Bittrex yet, I suggest you avoid Poloniex, and use any good Bitcoin exchange, such as Kraken or Binance.
You can use 
https://steemit.com/blocktrades/@blocktrades/how-to-convert-steem-sbd-to-fiat-more-efficiently