Satoshi's possible home IP address actually did leak shortly after Bitcoin's release, though it wasn't realized until years later.

(It definitely may not be him and might instead be a random early user. But I think there's a moderate chance it's him.)

Details: https://news.ycombinator.com/item?id=29728339

(I don't advocate attempting to find and publish his name and address, since it'd make his life difficult, but it's still very interesting in the abstract as a curious unsolved mystery for all these years despite the number of eyes on it.)