You made some great points.

I dont think inverse conversion would be a problem if it came with a fee that is set by witnesses.

If the amount of sbd is at $1 nobody would use this feature as it would be cheaper to just buy at the market.

However if the sbd proce hoes above the fee it would push the proce down.

Comversely if steem crashes people would convert sbd and thus resuce supply which also would fix the issue.

If however thwre is no way to keep sbd at $1 it looses all of its utility and value.

At the same time if sbd demand is high there needs to be a way to convert this energy into the steem price. Incerse conversion with a fee that is burned would create that. As a result i think inverse conversion is best way to fix sbd.

Are you aware of a better way?