I think it's fabulous that roleplaying is flourishing on some servers. I've heard wonderful things about Wyrmrest Accord in particular. I'm on Silver Hand myself - which although technically a RP server - is probably one of the worst RP servers I've seen to date. I wandered into Goldshire with my Alliance alt the other day and managed to start up something with somebody else, only to be ridiculed a short time later by some other players.
Reading up on Wyrmrest Accord, I was initially extremely skeptical that the roleplaying was as common as people were saying it was. Tonight I made a random character with the intention of perusing Stormwind to see just how common it was.
And I was totally blown away. Characters in "roleplay" clothes. Characters using SAY to carry out a conversation. Characters WALKING even!
I'd love to move to Wyrmrest Accord, but too many good friends are on Silver Hand, which is probably the only thing keeping me there right now.
Please press on, my beloved friends. It makes me so happy to see it happening.
(And a huge thank you to Slywyn for providing all this information!)