Anyone who accepts WoW accepts the fact that it is both fantasy and sci fi, steampunk if you will, with established planetary travel via dimensional magic, and embraces the concept of time travel. That framework opens up any door to any thing. If you want to play a drow, I say go for it. Just know that a lot of people are hostile to anything that doesn't have an official Bliz stamp of approval on it.
WoW requires an absurd amount of suspension of disbelief already to RP in it. To all the people who just get disgusted when people go outside the established WoW lore box, good gracious, talk about not seeing the forest due to a tree. It should not matter in the slightest if somebody utilizes backstory/concept that is outside of WoW lore. It is all in the implementation. If RA Salvatore plays WoW, and wants to RP a drow who managed to hop universe, I bet he'd be a pretty fantastic story telling RPer, and it would be a shame for you close minded folk to write him off simply because he was playing a character that was outside the WoW lore box. It would certainly be your loss, not Salvatore's. Not the best example, but I think it demonstrates my point.
I say welcome to drow, vampires, time traveling gun slingers, and whatever else, but I will hold them to the same standards of what I think constitutes a good RPer as everyone else. And if they can pull off interesting, believable characters, regardless of how extraordinary the backstory, then kudos, and I hope to see you in game.
Just always make sure you respect WoW lore as it stands, and do not contradict it, even if you are working outside of it.
Edit: censored my four letter D word I initially wrote, and I would add that I am 29 years old. I have been playing D&D since I was eleven, DMing games since I was 12, and I have had the same on-going campaign active since I was 17. Lately, my tabletop game is shelved b/c so many of the players work out of state so much of the year in the nuclear power industry, and I became a father. I decided to continue the story using WoW as a platform, and most of my players have rolled their characters into WoW. My campaign was largely centered around an artifact the players had a long while that allowed dimensional & time travel, and it's not a stretch them being on Azeroth whatsoever. I have only just recently taken this guild public, and we will be RPing more and more with others who were never involved with our campaign. Long story, the purpose of which is me stating that anyone who considers him or herself a very good RPer, but wants to use ideas outside of established WoW lore, look us up on Alliance, Ravenholdt. Feel free to send me a letter in game to initiate contact.
Peace, gamers.
Edited by Lhane on 1/13/2011 2:59 PM PST