I'm going to assume you already understand how bts smartcoins work in this post. AKA bitassets AKA MPAs
I think creating BitSteem would make alot of sense as a smartcoin.
Firstly because of the natural synergys between the bitshares and steemit users but more importantly this would be a bit asset that many people would actually want to short.
- Whales with vested SP might want to hedge their large positions by shorting steem.
- Someone who wanted to power down their SP over 2 years could be guaranteed a fixed payout if shorted correctly
- When people call Steem a scam you can suggest they put their money where their mouth is and short it.
The issue with BitUSD, BitGold, etc is it is only created when theres a trader willing to short it into existence so the supply has been limited so far.
I think there would be a good supply and decent liquidity of BitSteem because of an appetite to short from traders.