this post was submitted on 15 Apr 2025
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Correct me if I'm wrong but ISPs dynamically assign WAN IPs to the vast majority of their non-enterprise consumer base, right? If that's the case, how would historical posts on 4chan have any relevant data to dox someone with? Wouldn't the window of opportunity have passed for pretty much everything older than a few weeks?
Yep and even better than that; most if not all residential ISPs use Carrier-grade NAT so one IP (which changes), now represents hundreds if not tens of thousands of their customers.
At the very best, you could maybe narrow an IP to a very vague geographical area like several suburbs, or a specific town maybe.