I don't agree with a sudden drop. I believe any sudden change in economics can lower the confidence of the investors and users.
This came up months ago and I suggested to do a coordinated lowering like 1% per month or two months. Which needs announcements to let the community know beforehand.
Do I agree with lowering at all? Depends. We are spending 2 million dollars a year from DHF and we don't do any marketing. We could buy Steemit inc. back with this type of money.
The initial idea was to market HBD and get more users but we didn't do any of that. Because nobody cares.
I would agree with lowering the interest rate slowly because still nobody cares about marketing.
It doesn't matter though. It won't make any difference in the market. The market is going to go down anyways. If you don't grow, you decline.
RE: HBD interest rate - Hive economics