SE should consider providing its own VPN network to solve the lag problem

[Alhanelem]

not all MMO's have terrible netcode and require an amazing connection to do the end-game raiding.

Except it is well established that this isn't a netcode issue, it is a backbone ISP issue. It is not within SE's control, short of them badgering the owner of the infrastructure to fix it. This also explains why some people are not having any issues, because their connections are taking a different path to the target host machines.

If you read the posts above, you'll understand exactly why the VPN is effective. If it was "terrible netcode", then you would still be having problems even with the VPN. No amount of efficiency in networking would be able to compensate for bad netcode.