I used to talk a lot about how we should change SBD to peg it better to USD, but now I don't think that's the case. SBD is one of the best coins to give an accurate representation of whether the market at large is overbought or oversold.
Instead, what we should do is implement another coin with smart-contracts to mimic MakerDAO. If we begin to lock up Steem to collateralize a coin pegged to USD it will hold the peg much better. It will also take Steem off the open market and allow users to margin trade the new stable coin just like you can with DAI.