I did 40 man raids in Vanilla and some 25 man stuff in TBC before I quit. While I enjoyed those there is no way I'd want to do that in this game. That's mostly because my life has changed and I'm no longer the student with a lot of spare time though :p organising large scale raids on difficult content is a pretty big undertaking. Also like others have said the oneshot mechanics that are often employed in the 8 man raids in this game would make for quite a frustrating experience in a bigger group. There's probably some kind of middle ground between CT faceroll mode and Coil though.
