This has been bothering me for at least 8 years now... but I never really strongly spoke out about it.
See how Taurens were depicted in Warcraft 3:
I'm pretty annoyed that in World of Warcraft they made Taurens look like small fat cows instead... The entire savage native american vibe is completely missing.
Night Elves the same story, even their lore got butchered pretty much. No longer this savage matriarchal society very closely in touch with nature and animals, with some moon/night magic mysticism thrown in. Much more depicted as every other average elf society in WoW now.