system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do people on the internet find out another person's identity and address, and how can I avoid this happening to me?

Edit: I mean more in terms of finding IP addresses rather than accidentally revealing personal information. What kind of information does an IP address give somebody? How do people find it and is it a good idea to try to prevent that or does it not really matter?
gpt
Never ever give out information that lets people figure out who you are.

Remember that someone who is obsessed with finding you is going to go through your entire public history. So if in some comment you posted that you were born in Detroit, and in another one a year earlier you posted your birthdate, that really narrows down who you are.

Don't post license plate numbers, there are too many people who have friends at the DMV who can look that up. Be on the lookout for any other kind of info leaks like that.