I also am OK for 100% tax to anyone who's not me or my immediate family.
Come on. Your objection is meaningless distraction, because it's so general it's an objection to any kind of punishment of anyone proposed by anyone who isn't themselves guilty.
On the other hand, becoming billionaire is both extremely hard, bordering impossible for most people, and it's also an active choice someone who's not already billionaire can make on their way there (so they can always be just enough away from being a billionaire).
That's why to me it's like being in favor for a law against martians: it really doesn't concern anyone of us, so who cares?
What do you mean? A billionaire committing massive fraud definitely concerns us.
But how do you know? Is the idea that a billionaire wouldn't be posting to HackerNews?
Then your money wouldn't be worth anything as no one will want to provide you with a service.
That is why they can get the death penalty.
In China, the party is almighty, but it won't hesitate to eat it's young, it's parents, or even it's mate.
Honestly, I think it's fine, but only if reserved for billionaires. That kind of economic power breeds arrogance, which needs something to keep it in check. The quantity has a quality all its own.
The death penalty is definitely not OK for low level people or the sums even a wealthy regular person could have. And I don't even think it should be an option for most violent crime, either.