I don't think most people will do this, and most proposals are grossly over priced even at $1 HBD.
If they don't feel like doing it they can just use good-karma's script though. There is no "one solution fits all"
Another idea is just have the DHF print the appropriate amount of HBD based on current price.
As I mentioned in some other comments this would require a second price feed for hbd which is kind of an aberration because it would mean that we agree that we failed to peg hbd for good. This is more about treating the symptoms (dhf paying too much) than the cause (hbd not pegged)
The internal market price can be used as a second price feed, but it isn't all that great because unless my market maker bot is running (which it wasn't until a month or so ago), the spread can be enormous, making the price quite ambiguous. It is also a small enough market that it could easily be manipulated, although the same sort of 3.5 day window would help prevent that.
I agree this isn't a good way to go.
That's a neat solution ! I didn't think of that, but yes has it's limitations.