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It's not 100% because you may get some folks who sign up on a PC but deal with email on a phone, but if they're on home wifi then it'll be the same address. If
by fencepost 9y ago
It's not 100% because you may get some folks who sign up on a PC but deal with email on a phone, but if they're on home wifi then it'll be the same address. If your emails are sent immediately then differing IPs seem like they'd be rare.