#28 - Feb. 4, 2011, 1:01 a.m.
Translation: You wasted your gold on an item that is usable for that expansion only. We have no plans to update the vendors for that mount, we would instead prefer that you waste more gold for the newest mount coming this expansion (maybe).
Your gold wasn't spent needlessly. The multi-seater mammoth mounts still have a fast run speed, can hold up to three passengers, and allow nearby players to sell and repair their items. That functionality is available to everyone, regardless of when the mount is or was purchased.
I can understand if my response wasn't what you wanted to hear, though. That's completely understandable. We're open to your feedback and want to hear if you feel differently. In the meantime, warped interpretations of our text aren't really necessary and don't tell us much about why you disagree.