Customization Nerds? You mean the two or three website everyone would go to to be told what talents, gems, enchants, reforges to do. This is why they changed it
Overpowered with gear? fun for those few that had the gear, not anybody else. This is why they changed it
Prestigious Raiders? Not in game they weren't. They were either in an instance farming for gear, or already had it and selling runs. Any perceived prestige was given outside the game on third party websites. This is why it was changed.