I brought this up in another thread. I'm fine with it, but I can see a lot of people getting frustrated and hopping to different servers since they won't be able to WvWvW while in the overflow servers(as I understand it?).
We'll have to see how much this really does screw people over.
Edit: As for that poll, take that with a grain of salt. ~5k voters is nothing. Plus, the people who have been linked to that poll could easily just be from a community that has already decided to roll on Yak's Bend.
I just know Yak's Bend will be popular because it's where the Yogscast and GW2Guru guilds are going, so that's a huge old zerg of people alone.