interesting idea i would say. Having a global 12% or 10% HBD APR (which is likely a starting point)
from there by adding different steps of HivePower Value can increase their Rates up to 15%.
Those additional 5% could adapt on 15->20 | 10->15 |12->17%.
However, it could be an "OnTop" Feature to give incentives to stake HivePower and start the Journey on that.
good idea.