I have no immediate plans to add interest for SBD. I don’t think it is necessary under current conditions.

Generating demand for STEEM and generating demand for SBD are largely unrelated.

As far as increasing demand for STEEM, my most recent post is touching on the subject. The short answer though is that it is everyone’s responsibility.

An interesting question to think about, because many stakeholders think this way - if someone’s content is not generating more demand for STEEM, should it even be getting paid?