Just purchased my 670th usable mount for my main in the Zaralek Cavern! The mount cost me (400) Coveted Bauble currency that you can obtain in the Zaralek Cavern zone, That you convert at a vendor from collecting the Unearthed Fragrent Coin currency!
My newest mount is the Igneous Shalewing! 
Today is my lucky day. I killed Breezebiter and got the reins of the Liberated Slyvern, was probably about 20 kills total so that was amazing luck. Then went out to kill Karokta and got the Cobalt Shalewing. I am now going to go kill Ultraxion because I have over 400 attempts on that mount. Edit: no luck on the Ultraxion mount still.
#“376” - Scarlet Pterrordax – IT’S FREE!
#“377” - White War Wolf
#“378” - Ancient Salamanther – Randomly came to the Forbidden Reach and got it!
#“379” - Yellow War Ottuk
#“380” - Brown Scouting Ottuk
#“381” - Brown War Ottuk
Just received my first Time Rift Event mount in-game! Took several Time Rift Events to finally obtain my first mount too. My newest mount is the White War Wolf!
As a result of this, I now got 671 usable mounts collected for my main in-game and 724 total collected account wide!
Just received my 672nd usable mount for my main in-game from the Researchers Under Fire event located in Zaralek Cavern! My newest mount is the Cataloged Shalewing!
“382” - Inferno Armoredon – at last. Was being too lazy >.>
#656 - Armored Siege Kodo
#657 - Grotto Netherwing Drake
#658 - Winding Slitherdrake
#659 - Ancient Clefthoof
#660 - White War Wolf (Thanks Orctang!)
Just had a nice kind soul give me the Ravenous Black Gryphon mount from the Time Rifts Event! I got no idea who had given me the mount, But hopefully they saw my message of gratitude in General Chat after I got it!
As a result of this, I now got 673 usable mounts on my main and 726 account wide!
“383” - Alabaster Stormtalon – From the Trading Post because gryphons rule… and now I notice I can’t use it with this character, darn.
So it doesn’t give you the Horde version? I didn’t pay attention to it since I already had it.
It should be able to give you both of the mounts once you have purchased one off of the Trading Post. I know with the redemption code that you got if you purchased the WoW 15th Anniversary Box, That the code gave you both mounts.
At least, I think that’s how it worked. Could be wrong.
Nope. The other one has to be exchanged separatedly in the Trading Post.
https://i.imgur.com/ZVmBejq.pngYou got both when you bought them as a couple in the Shop.
I believe the TP version requires both to be purchased individually.
The purchased version came with both.
#661 - Felstorm Dragon
#662 - Scourgebound Vanquisher
#663 - Gold-Toed Albatross
#664 - Sulfur Hound
#665 - Perfected Juggernaut
Been working on Sharkbait. I tried to do the other two BfA mythics that are soloable atm but it was too much. One at a time!
Well, I just compared my count to the Discord collections bot and I gained two mounts some how. I’ve been keeping notes on my mount count for years so I have no idea where they came from.
So… 667, I guess?
Purchased (3) more mounts from the Time Rifts vendors! Taking me up to 676 usable mounts on my main character in-game!
Mount #674: Felstorm Dragon
Mount #675: Gold-Toed Albatross
Mount #676: Sulfur Hound
Just received my 677th usable mount for my main now for participating in Time Rifts. Received an item from Soridormi for successfully reaching the Timewalker rank with this particular reputation.
This item gives you a choice between choosing a guranteed mount or pet from Time Rifts that you don’t currently have obtained. Seeing as how I already got all of the pets from this event, I chose the mount.
As a result my newest mount is the Scourgebound Vanquisher!
Just purchased my 678th usable mount off one of the vendors from the Time Rift Event area. This was also the last mount I needed too from Time Rifts!
My newest mount is the Perfected Juggernaut!
I also only need another 9,000 reputation grinded and then I’ll be completely done with this particular event for the expansion!
Discord collections bot still says I have two mystery mounts so I guess I’ll just roll with it.
#668 - Sharkbait
#669 - Rocket Shredder 9001
#670 - Underrot Crawg
Not looking forward to farming the raptor from King’s Rest since I can’t skip to the end like the other two BfA dungeons I just did 
Just recieved my 679th usable mount for my main the other day by participating in the Trading Post activities for the month of September!
My newest mount is the Crusty Crawler!
“384” - Crusty Crawler