'Done "right" money isn't a factor. Certainly not if we can consider sensible mass residence of the stars.'
I agree with this, but we would have to create some sort of method to do this because -as far as I know- there's no country on Earth that does death sentence "right", if we take money into account (that is, ethically).
'Deportation to country of origin - as previously covered in this and similar threads - is only a viable concept for those that actually have a country of origin - what happens when they've been born in Asgardia?'
Didn't thought about that.
I guess that coming with a simple method to dispose of the criminals would be the better for Asgardia (killers, corrupted people, etc.), like you say, death-sentence done "right" but ethically. But we would need prisons nonetheless for less serious criminal acts, or maybe forced labour?
I wonder why you were banned, from what I've seen from your blog posts you always have something interesting to add to topics and don't behave rudely.