I understand blizzard stance, they want the tank to know where players put their AOE in order to tank mobs in the right place, however we need more player agency around this. we want to be able to select to not display any and hide ALL other players spells effects.
It just does not work for melee. The number of pets and spells effects makes raiding as melee an exercice of looking if you can see you feet.
See this screenshot taken from Sprocket mythic to illustrate:
imgur com/a/1G7YYZ1
There are two setting in wow to manage spell effects:
Particle Density: required to see boss spells effects on ground etc.
Spell density: this is supposed to reduced visual clutter etc. Unfortunately the lowest setting does NOT remove ALL friendly spell effects because most at white listed!
Solution:
Let players decide what they want to see. I dont need to see other players spell effects, a tank might. Add an option for HIDE ALL: hide all friendly spell effects (all).
PS: could a nice person that can post links post the above url adding a dot after imgur.