It's very common for people to switch networks many times a day anyway so it's not obviously a VPN user - even when switching countries to some extent.
Can you elaborate? I assume they're talking about switching networks while using the same site, when you have a user fingerprint from cookies or request paths. That does make VPN usage obvious.
I have been confused by this mitigation because switching networks while using the same service is pretty much always a VPN. But maybe I'm not aware of another case where that would happen?
loading story #48282095
loading story #48282655