so that the cloud providers don't actually know they're hosting The Pirate Bay.
When the IP addresses of the 'loadbalancers' are known then it takes any cloud-provider the better part of 5 minutes to determine which of their instances are exchanging how much traffic with those IP addresses.
However, if a country really wants to go ballistic on TPB then it'd be much easier to just knock their public-facing IPs out at the IX-level[1]. A fairly low-cost operation (if your legislation enables it) and the only circumvention is then to proxy through a different country - a significant barrier for most users.
When the IP addresses of the 'loadbalancers' are known then it takes any cloud-provider the better part of 5 minutes to determine which of their instances are exchanging how much traffic with those IP addresses.
However, if a country really wants to go ballistic on TPB then it'd be much easier to just knock their public-facing IPs out at the IX-level[1]. A fairly low-cost operation (if your legislation enables it) and the only circumvention is then to proxy through a different country - a significant barrier for most users.
[1] http://en.wikipedia.org/wiki/List_of_Internet_exchange_point...