Why?

[Elephantality]

In fact, 14 caters to endgame raiders far more than it caters to casuals since Dawntrail released. So, I'm not sure where this idea that solo players or casuals are ruining the game comes from. It's like people on these forums just ignore objective reality.

True, I think the game has solo / multiplayer balanced well. I think the duty support dungeons are very good.

for me it is because casual players make everything a slog. i am trying to speed level in dungeons and casuals cannot tell their left hand from their right hand.

Then don't play with them. Play with those that have similar interests to you.