how can heritage foundation track an IP address to a particular person?

1. There are services that try to do this, although they’re mostly inaccurate and a scam. I can’t find the story, but there was such a service that many people used that erroneously led people to some dude’s house. Instead of giving a wide area to indicate uncertainty, the service put a point in the middle. This guy lived there. So such services do exist.
2. It doesn’t really matter if the person’s name is associated with the IP. Just knowing the IP address of someone you hate can be enough to mess with them. I hope your home network is as secure as you think it is. I hope you don’t play games and get DoSed during them. That happens to popular streamers sometimes.