Well, what were raiders bashing? I am very rare guest to the english forums, so I don't really know.
And, I don't know, I always thought hardcore players are those who think, observe, calculate, create logistics and use their skills to complete the hardest tasks, casuals are those who don't want to push the limits of their minds and bodies, they just want to spend some time to have fun in game, and semi-hardcore are inbetween. Time is not important. Yes, there are games where hardcoreness means the hardness of your butt to sit through that endless xp or other points farm, but WoW was not that kind of game since vanilla until Legion.
So I guess nothing's changed, forums are still 99% full of assholes.