I am no one with measly 1500 HP

And neither I'm as smart and knowledgable of finances and crypto as I would like to be, but what would you guys think of the following:

Variable APR for HBD depending on your activity and HP growth?

it can all sit on a base of 10% or 12% and then it can grow further for those active users that actually contribute to the blockchain in one way or another instead of just rewarding buying a shit ton of HBD and let it sit there reaping interests

I'm a sure this idea has a lot of shortcoming and would very much like to hear them so I can learn more :)