agree.
Powerdown is something it should be an option but not a must-have.
It must be enough exchanges don't use user funds.
If you can generate a multi-sig 1-week power down, it should work the same way as today.
So you can power down 1 week with multi-sig or 13 weeks.
Or a collateral version, you can lock up your Hivepower to generate a stable coin.
It's like instant too, can be managed with a new "money key". so it's also secure.