You are totally right. I was thinking the IP address issue could be solved by adding a feature to crowdsource information about IP addresses from users, or may

You are totally right. I was thinking the IP address issue could be solved by adding a feature to crowdsource information about IP addresses from users, or maybe using APIs like ipinfo.io to create an updated database. (Didn't have time/money to implement it and wanted to avoid procrastinating the launch again and again...) But unfortunately one just needs to create an account on Wikipedia (or use a VPN) to circumvent this kind of approach. This is really the main flaw, and I don't think there's a workaround to it.