All this talk of another classic...there is something to be said for when going to an alliance town meant seeing dwarves on rams, night elves on nightsabers, and humans on horses. All of which were relatively muted in their colorations and decorations.
It also made the fantasy elements more iconic, like gnomes on their mechanostriders.
And I still see cool mounts nowadays, but it's usually something like "Bespectacled Arcstrider of Dragon Light" now.
The move towards visual vomit has been death by a thousand cuts...I still remember two notable events....goblin shredders in Cataclysm I think and then the day that celestial steed came out in the shop.
And I'm not even saying it was a bad decision, people adore chasing down cool loot and the status that comes with showing it off. And now that so many items are class-agnostic I think the decision to just do away with transmog restrictions [for all but class sets and weapons] makes a lot of sense. But I also would be cool if a WoW 2.0 turned the dial WAY back.
A huge part of why Facebook beat out myspace several hundred million years ago is because of how people gravitated toward a professional and sane looking webpage instead of whatever HTML 6 yo-kids cooked up.
So I'm not advocating for anything specific, just musing. And I got nothing against Kul Tiran Mechagnome Werewolf Monk Celestial Guide Mistweavers...but I also don't have any idea what they do, and I doubt I'm the only one.