IMO, it is outside the scope of the current proposals that are funding @hbdstabilizer

No it isn't. The original proposal mentioned a LOW bound and doing conversions. I stated later that it wasn't being implemented right away but might be added later.

Already the stabilizer does use HIVE (mostly from power down of beneficiary HP) to buy HBD if HBD is <$1, and then sends that HBD back to the DHF instead of sending the HIVE. This helps take some HBD off the market and generates a profit for HBD. But it doesn't do conversions for now.