I have functional hands, eyeballs, ears and a brain. I can look up how Vanilla worked, what it was like to play...and I wouldn't like it. No, it's true that I didn't personally experience Vanilla as it was...and I'm glad I wasn't. It sounds like it was way too grindy and demanding. I've heard horror-stories of people grinding pvp ranks, having real, tangible impact on their real lives, because that was what the game demanded to get to the higher eschelons of the pvp system.
Same with getting just decent gear, farming consumables and resistance buffs for certain content. I don't care how 'hardcore' you want a game to be to satisfy you, but 'grindcore' is something that can be avoided either way. A lot of the difficulty about things with vanilla (and some of BC as well) was arbitrary.
It was also stressed that there were issues with it, and it was based in nostalgia, but they're taking the wishes for legacy/'pristine' servers seriously.
https://www.youtube.com/watch?v=hEn8iVkOMd4
Note as he says in this vid, Hazzikostas is
NOT who you want to look at for confirmation of Legacy servers, whatever it means, because it's extremely vague what he says. To me, it sounds like they want to do flexible world phasing, not actual seperate servers from live to re-capture the
pre-cataclysm world.
It's a quote balanced on an egg.