Blizzard should create a decent tutorial for new incoming players, explaining how the game works and what players are supposed to do.
New players are clueless about what their job is.
There no information ingame about XP, roles, objectives, tiers, talents, whatever. Nothing.
Being a new player is a horrible experience. You get insulted, pinged like there is no tomorrow, raged against, you name it. All because, as a new player, you don’t know what you’re supposed to do.
There is a tutorial, alright. But it teaches you absolutely nothing.