> Not that I want to give them any ideas, but surely the best solution would be to just lock the account down to the region the billing account is from?
I'm pretty sure (based on dealing with DRM/geoIP restriction requirements in other spheres) that it's because the media companies are incredibly anal about enforcement on strict geographic lines. They don't care if your account is linked to a US credit card at a US billing address, despite how effective that is at ensuring that you are a US user (and how difficult it is to spoof). They are hellbent on the idea that no US-only content should ever be streamed to an IP address terminating at a non-US location. For them it's absolutely not about people or accounts - it's entirely a matter of geography.
Netflix could easily apply a rule based on the region of the billing account, and I am sure it would be vastly more effective than playing whack-a-mole with individual IP addresses. However, the media companies would undoubtedly still insist that they do strict geoIP restriction as well. And if Netflix did both, anybody who is traveling outside of their home country would find Netflix to be bereft of content; anyone who travelled frequently would find Netflix to be perfectly useless. By going all-in on geoIP, Netflix keeps the geoIP-fixated media companies happy, while ensuring that users see plenty of content even as they move from country to country.
I'd guess that Netflix is only upping their game on residential IPs etc now because the media companies are no longer happy and are leaning on them - VPN services are simply becoming too brazen about advertising the ability to bypass Netflix geo restrictions by clicking flags. Whenever it becomes this obvious to the media guys that anyone with a pulse and a credit card can circumvent Netflix's controls, they'll be pressed to 'do better' or lose their rights to content. Netflix takes some steps, catches some backlash, and the media companies are placated for a while.
I'm pretty sure (based on dealing with DRM/geoIP restriction requirements in other spheres) that it's because the media companies are incredibly anal about enforcement on strict geographic lines. They don't care if your account is linked to a US credit card at a US billing address, despite how effective that is at ensuring that you are a US user (and how difficult it is to spoof). They are hellbent on the idea that no US-only content should ever be streamed to an IP address terminating at a non-US location. For them it's absolutely not about people or accounts - it's entirely a matter of geography.
Netflix could easily apply a rule based on the region of the billing account, and I am sure it would be vastly more effective than playing whack-a-mole with individual IP addresses. However, the media companies would undoubtedly still insist that they do strict geoIP restriction as well. And if Netflix did both, anybody who is traveling outside of their home country would find Netflix to be bereft of content; anyone who travelled frequently would find Netflix to be perfectly useless. By going all-in on geoIP, Netflix keeps the geoIP-fixated media companies happy, while ensuring that users see plenty of content even as they move from country to country.
I'd guess that Netflix is only upping their game on residential IPs etc now because the media companies are no longer happy and are leaning on them - VPN services are simply becoming too brazen about advertising the ability to bypass Netflix geo restrictions by clicking flags. Whenever it becomes this obvious to the media guys that anyone with a pulse and a credit card can circumvent Netflix's controls, they'll be pressed to 'do better' or lose their rights to content. Netflix takes some steps, catches some backlash, and the media companies are placated for a while.