I'm not so sure that anyone knows Satoshi's actual IP address, if Satoshi knew what he was doing, and he most likely did, his actual IP address was hidden by many layers of obfuscation, including TOR.
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,
Satoshi had everything covered in terms of privacy & its pretty remarkable that someone could make something so large and wildly successful and never be present to take credit for anything. Surely satoshi is such a popular character amongst bitcoiners and crypto folk - but he is basically considered I want to say nearly an enemy or a threat to governments and financial institutions. So it's no wonder that you don't see him anywhere. Satoshi was wise and knew that if they revealed themselves they could have been subject to foul play - surely death threats & maybe even torture!? Who knows, there are a lot of bad people out there & powerful ones at that that could do whatever they wished probably without getting caught. At least that is my take and the reason I think he wanted to keep his identity a secret, one main one at least.