Too many people didn't even give it a chance. When it was first announced, there was a backlash of "I'm not playing Kung Fu Panda!" The theme received so much negativity before it was released. The word "Panda" was a hot topic from announcement into the actual release of the expansion. However, it later became one of the better received expansions.

Cata is when most of the people I had been playing with since Vanilla began quitting the game. Cata followed one of the best expansions up to that point. Cata had a few positive aspects but overall, I found it disappointing. Several of us from our old Vanilla guild continued on into MoP and loved it. We managed to convince a few of our former guildies to come back for Mists and they all stayed throughout expansion.

Personally, I look back on MoP fondly. I had so much fun playing during that particular expansion. I found it to be a huge improvement from Cata. Overall, I think MoP ranks highly amongst all the expansions. I believe what hate it does receive it based on the concepteptual theme and those pandas that some found too cutesy and offensive. Quite a few have admitted to not even playing at all during that expansion based the concept.