@ Ringo Flinthammer: It's only a problem for people who don't have a grasp on the associated lore and feel the need to endlessly complicate things to compensate for that. I wrote a wall of text on yesterday's Queue in response to that question, but to summarize: you can easily fanwank an explanation for both Arugalish Worgen and the Cursed Gilnean Human variety. There are Gilneans outside of the Greymane Wall, in the game, right now. Baron Longshore, the pirate lord in the Barrens, is one. Gilneas is a port city. It's really not that big a stretch to assume at least a small number of cursed Gilneans got out via ship and then fell to the Scourge. As for Goblins, they're mercenaries, were present during many Scourge battles during the Third War (Quel'thalas immediately comes to mind), and are well-traveled to this day..

Frankly IMO people are just a) ignorant of lore and/or b) rules lawyering so they can call "lol lore". My money's on B, considering a lot of these people did the exact same thing regarding Draenei and BE DKs, which require even less fanwanking than Goblins and Worgen. Even though Blizzard has said flat out that Goblin and Worgen DKs are an issue of Gameplay and Story Segregation, they still jive perfectly fine with the lore if you're even halfway knowledgeable.