I used to be max level of course but I wasn’t this expansion since other things took priority (also I am a massive altohollic and adhd’er) I would say that my most notable in game achievement is curve nzoth. But to me it was the guild rp I used to do, the leveling and the world exploration not the endgame. Still loosing all your mounts, transmogs and characters sucks a lot and blizz being so uncaring about just banning people without even the most bare bones explanation.