Thanks, good to know.
As long there a ways to power up and down without a fee I would support it.
Also, I would prefer an opt-in for wallets first, as you mention. Maybe with a simple multi-sig solution, that could be easily implemented in front ends.
Then I would agree, it is a good idea.
My concern would be if we tax everything for long term holders, we kill the ability for new holders to be part of hive. Because I think hive is first a chain for web3, not defi (on the main chain).