You mean (some) Heroic Dungeon that require class stacking and nobody wants to attempt because of their terrible loot to effort ratio?
You mean spending months on gearing up and attuning alts for raids?
You mean some of the most annoying trash packs ever in SSC with 30 mins respawn timer?
You mean ridicoulous difficulty differences between bosses from Free Loot (Loot Reaver Akama) to straight out impossible for months like Kael thas?
You mean 9 months of farming BT and FREAKIN MH without nothing else to do other than arena? (There were no achievments)
You mean getting Glaives (=better SW progress) being based on nothing else then RNG?
You mean tons of one button specs like CH Shaman and SB Lock?
You mean Blizzard 'Bring the Player, not the Class! But don't forget to always bring 5 Shamans as many ppl as possible with Glaives and depending on the boss 5 Priests, 11 Healers or 4 Warlocks!