What drove me away is spending hours reading/watching guides and then more to play a hopeless fight ("practicing") that inevitably just made the whole group salty and disband.
Is the endgame still like that, with bosses full of phases and patterns that you have to practice and memorize to beat and you gear barely mattered? Or did it became more intuitive like WoW?
I'm curious about the new expansion but if endgame raiding is still a rather unenjoyable experience then I think it's not for me.