Regarding WvW, I hate to be the discordant note, but I see nothing wrong with servers allying with each other in order to beat the third. That's the way the game is set up, and if that's the most efficient way to play a given match-up, then that's the optimal strategy. As a disclaimer, I have to say I adhere to Dave Sirlin's philosophy of "play to win".
In a way, it's a situation not entirely dissimilar to this:
http://www.sirlin.net/blog/2012/8/1/playing-to-win-in-badminton.html
In short, if the game's rules encourage undesired behaviour, the fault is within the game rules, not the players that engage in it. Now, the crucial difference here is that I believe two-teaming is actually intended behaviour in WvW. Otherwise it simply makes no sense to make it a three way to begin with.
On a more positive note, I believe we should be proud of this. Having two servers ally against a third means that they see it as the bigger threat, one that they simply cannot tackle on their own. In a sense, it's the biggest compliment. That might be somewhat undermined by the fact that it also has roots on past animosity between them and SBI, but still.
In any case, I don't play barely any WvW, so I might be misrepresenting some facts. Ignore me if that's the case.
Varix did the exact same thing with the Thaumanova Anomaly yesterday (Tron-ish fight) in our story run of the reactor. It was the most epic thing I've seen in GW2. You really had to be there to see him jump from platform to platform as they vanished, with catlike precision, while killing the boss singlehandedly. Beautiful in every sense of the word.