-snip-
And IP address is not the same as identity. It often links to identity if someone is using the Internet from their home, but if a public WiFi is used, IP won't reveal much,
This is what I also think, of course, as Satoshi will not rashly use the internet from his home to access anything.
And see how in hacker movies like Mr. Robot etc., all their access comes from cafes or public Wi-Fi, or they also use a lot of IP that will change in just a few seconds.
But I don't know how Satoshi could disappear without any trace, he had thought well about it not to leave any marks so he remained anonymous.