There's a couple reasons
- sHBD can move freely on VSC, opening doors for DeFi opportunities
- sHBD earns APR from savings while you can still use it (similar to liquid staking)
Having a version of HBD that can be used on VSC while staked on Hive is the advantage.
That could be cool to do something with like dec and sHBD. Would let spl have a better stable coin pair for dec in hive.
the possibilities are endless