Yes, I have heard this beffore as a con ... I agree to a certain degree ... would like to see some proposals how to get around this, maybe aproval first etc ...
Also people are holding millions in metamask, doesnt seems they worry much ... securing ypur funds should include some personal responsability as well .... we just need to provide the options
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.