Warlords of Draenor is going to shake up the raiding experience in World of Warcraft, and if raiding is what you like to do in the game, that's pretty important. But rather than just explain how raiding will be in the new expansion, Blizzard has opted to look past through the previous expansions and examine how revisions have affected the game over the years. Yesterday's blog covered launch through Wrath of the Lich King, while this entry focuses on Cataclysm and Mists of Pandaria.
Cataclysm removed the difficulty gap between 10-person and 25-person raids, but the side effect was a pressure to produce smaller raid groups rather than grow to bigger groups. It also introduced the raid finder as a mechanic, encouraging more people to experience the content. Mists of Pandaria, on the other hand, suffered from bottlenecks that prevented non-raiding groups from making any progress, although flex raiding was deemed a better way to get groups in and playing. Take a look at the full article for more details on the ups and downs, with part 3 set to address the future of raiding in Warlords of Draenor.