It’s probably the lying low for 30 days. In the 2000s and 2010s, I ran various websites and the hit counters I used would give me, for each visitor, the browser they used, the operating system, the screen resolution, the IP address, the city and state they were in, the internet provider company they were using like Xfinity, and whether they were a new user or not. If the person cleared their cookies or came back after the cookies expired then they appeared as a new visitor. If this info was tied to usernames and emails, it’d be easy to kinda figure out who is who. But not if not if they'd been gone for a while.

Also, I can’t remember exactly if this one company had it’s own IP or it was it’s own internet provider, but I do remember I could spot my ex-girlfriend looking at my sites while she was at work because she worked for this company and it would show up as part of the info. She got weirded out when I asked her why she was visiting my sites at work.