There is no limit to how far back coins can get zapped. At the launch of i0coin, I had 300-confirmation generates go pooof.
Yes, but luke intentionally did not do that. And on new and volatile high rate coins, you can naturally expect a lot of orphans.
The purpose of the maturity limit is so that people can't lose money they actually had control over without a really big split. Luke could have created a deep fork, but didn't, because contrary to claims here: he's not a thief or a scammer.
