I don't think I misunderstand the point of delegation of power. I understand what we "need". This is not always what we get, though.
Such a feature could be used in the way I described and I was curious to know other points of view. If the Steem blockchain can process dozens of thousands of transactions per second, it could, theoretically, create a different mega-whale every second.
I didn't give it too much thought before I saw the release notes. But now it looks like it increases the attack surface on the blockchain, leaving the reward pool even more vulnerable to collusive behavior.
But I may be wrong. That's why I'm asking around.
You're correct. That feature can be (ab)used that way.
//Edit:
But delegation is not able to change at will. One can cancel a delegation at any time, but to prevent abuse, she only can re-use that SP after 7 days.
That's better. There is a 7 days buffer between the delegation and potential re-use of that SP. In this case, the attack surface is significantly smaller and a mega-whale can be formed only every 7 days. Still vulnerable, but at a smaller scale.
Thanks for clarifying this to me.