As an avid VPN user it’s infuriating that multilingual websites insist on using the client’s IP address to determine their language and country when web browsers have been sending the Accept-Language HTTP header since the mid-90s.
I understand that you can work out more or less where someone is located based on their IP address but it was never meant to be a geo-based marker. Why not go the simple route and use the header?
As a user it’s annoying because I have to hunt down the language/region settings. And as a developer it would cost me a lot more to hunt down those values based on the client IP address.