This is true but they obviously refer to locomotives. The Horde actually reach up to pull the steam-release chain in such a locomotive, all of them make "Woo-woo!" sounds and the Trolls even make circular hand movements like the metal tracts connecting the wheels of a locomotive and the Deeprun Tram has none of these things (yes, I looked - with a Tauren no less, it's surprisingly easy to get in there without hurting anyone if you know how).
It's a conspiracy, I tell you! Vast underground travel networks, vast ...
Got one? Drop it in here. Let's see what people say. What exactly? Anything interesting that occurs to you on the spur of the moment. Warcraft related or not. ... but not political. You can keep yer politicking.
Here's mine; Has anyone ever wondered about the origins of the train dance? Every culture in Azeroth seems to have its own train and yet it would appear that Azeroth has never even had a locomotive travel system. Clairvoyancy? Random alien kidnappings and brain information dumps? Secret underground travel networks which neither faction wants the other to know about? You decide!