Yep! I went on blocktrades earlier today just see how much the "spread" was (which essentially is a fee) and at the time it was higher than 30%. While you can't go directly from SBD to BTC, the best route is to send your SBD to an exchange like Bittrex or Poloniex and sell it off there.
While STEEM is somewhat volatile, the volatility has slowed down quite a bit. I think since Tuesday's fork that reduced liquidity rewards for the internal market, the bots providing liquidity have stopped trading. All I see is @jl777's bot making many 7.77 and 77.7 trades. You could buy some STEEM on the internal market (http://steemit.com/market) and transfer the STEEM to Poloniex or Bittrex rather quickly for sale off.
RE: Beware of converting SteemUSD to BTC right now