Even though I'm not much of a worldpvper, I got some fun times pvping others and most of my dungeon runs were very nice. In terms of questing people were competing like mad and still I can count the amount of jerks on one hand.
But seriously, I can run around on an overpopulated server with almost no lag (yes, I'm from EU so it helps). I would jokingly say it's not blizzlike to be able to do that

I hope Stormrage doesn't fail as their intentions are great! And if both servers are stable who knows what the influx of new players can be when there are two servers to handle the (hopefully) load? But to me personally nost has been a great place and reading about stormrage allowing multiboxing is a big no no. I'm not against multiboxing in retail, but there's a wall of payment so not many people would want to do it. I'm afraid too many people will start to multibox on a free server.