> How likely is it that the same company which builds bleeding-edge machine-learning systems to track and predict our behavior online, and which uses these AI predictions constantly to maximize their ad revenue, somehow cannot find a better way to filter out spam invites?
Spam detection algorithms, even Google's, are rarely perfect. They probably came to conclusion that blocking foreign invites is a good tradeoff. We don't have enough information to evaluate if it was a good tradeoff. I think it was. I was recently getting lot of spammy chat invites (chat bots that tried to convince me to do an online payment for something), it was quite annoying.
Spam detection algorithms, even Google's, are rarely perfect. They probably came to conclusion that blocking foreign invites is a good tradeoff. We don't have enough information to evaluate if it was a good tradeoff. I think it was. I was recently getting lot of spammy chat invites (chat bots that tried to convince me to do an online payment for something), it was quite annoying.