The icc system literally was the worst system ever. I will reneger to this day how we spend 6 weeks on putricide, had multiple <5% tries. First 5% nerf kicked in, next raid we oneshotted him. There was no joy in Teamspeak after the kill. We actualy felt like something was stolen from us.
Could not justify to disable the buff either, because that would just be stupid. In the end the raidgroup disbanded and over half of the players quit the game.
Never again.
Just tune the damn bosses how they are intented and not for the top 50 guilds right frol the start and give us a meaningful and consistent gear progression system. I had something like 70% BiS gear before I even entered EP, of course I dont feel a increase in power.