Blazing Hippogryph

[Relaxus]

Ok so here's the thing...checked the auction house, mount tab and saw someone selling a couple of Blazing Hyppogryphs, all good there...so I decided to spend some points on one of those, 150 to be exact, and when I tried to put it on the auction house says its soulbound...ehm?, am I'm missing something here?, it's the exact same item as the one on the auction house.

Spent 150 points on a mount I already have and I can't sell it...great

[Abbey]

I may be wrong but I believe, on Warmane at least, that there's two types of the same mount. One type can be gained through coins and is BoE (Bind of Equip), while the second type can be gained with vote points but is BoP (Binds on Pickup). It would appear you have gotten the latter of those two possible types. This also happens with some other mounts which you may see in the Auction House, so be cautious.

[Anyone0]

There are 2 versions of it and not only on Warmane.
http://www.wowhead.com/item=54069
http://www.wowhead.com/item=74269

It's similar with some other mounts also.