Sort:  

Interest isn't affected by haircut but if conditions called for it witnesses could consider changing the rate including to zero. That might or might not be a good idea since it would reduce supply but could also discourage people from holding their HBD and make it harder to recover.

Cheers, if we were going to vary the 20% in any way it would need to be VERY clear I think under what conditions it can vary, easier to just keep it the same!

It can vary under any conditions. It is not a "promised" rate. This should always be made clear.

I wonder what the implications are of this for attracting new investors... It's an interesting stable coin HBD, that's for sure!