It mostly isn’t the case that you can increase your voting power by not minting for a period of time. Custodial grants and motions must get more than 50% of blocks to pass, so they can never pass just by using NuShares that haven’t been used in a while. Doing so confers no advantage in getting grants and motions passed, other than that all NuShares will be beyond the 7 day ineligibility period that occurs after minting.
With park rates the situation is different as they are determined solely by SDD. However, park rates have had little importance in recent times. @JordanLee proposed and shareholders passed a motion to end the use of SDD a long time ago. It has not been implemented yet. Maybe instead of just complaining and destroying you should build. What can you do to see SDD removed? Looks like you haven’t done anything constructive. In this decentralized system, you have no one to blame but yourself. Anyone can remove SDD from the network. Just write the code and it will adopted by shareholders.
The impact of SDD on the network is small. It has long been recognized as something to remove, but the community hasn’t had enough workers to get it done yet.
The explanation above makes clear this is not possible.