Started playing WvW 2 weeks ago. Last week i had more free time, and, despite being a less social player, got to know the commanders, players, guldies, even some "enemies" by their character model (willbender nerfs please?). It was nice seeing the same names and working together. All in all, had great fun. This week, i login and recognize none. Even the name of my faction is different. Not even a guy from my guild was around, despite almost all of them being online in the guild window. I start roaming around and then... 2 of my guildies pop up as enemies on my screen. Confused, i ask in guild chat. Turns out we are all split across factions, all scattered around. Aaaand the fun is gone.
I guess i'll start running against walls too for the time being.
Edit: there is a recent anet post where you can tell them if you need moving to match with your guild and they kindly will.