From your article it seemed that your use of anycast was more accident than feature, due to the limit of BGP prefix sizes. If you could route those IPs to their

From your article it seemed that your use of anycast was more accident than feature, due to the limit of BGP prefix sizes. If you could route those IPs to their correct destination, you would, you only go to the closest data center and route again because you have no choice. Maybe this ends up reducing cost on customers though, because the international transit happens in your backbone network rather than on the internet (customer-side).