Actually, what's will happen with STEEM when you power up? Is that STEEM burnt (like when you promote your content with SBD) or is it sent to some account? I think it's crucial.
I agree with you that powering up by other users cause me decreasing voting power...and powering down cause me increasing voting power. But what happen with STEEM? Burning them after powering up and creating new tokens after powering down would be logical. So when whales power down, new tokens are created and price is decreasing. But it should cause me increasing weight of my vote!