LFD, This ruined the ability of everyone running to a dungeon, meeting up with a bunch of people and fighting opposing factions.
"Stand's waiting, then all of an sudden a Undead Warlock comes with a group of friends. You try to survive until your friends arrive, then fight them or run into the instance because you're scared." This engaged epic world pvp and allowed people in the world.
Flying Mounts ruined the WORLD aspect of the game. World of Warcraft was exciting because we got to see new areas in the world to explore.
Cataclysm revamped an entire world that we used to love, but they decided to hand out flying mounts at level 60 and increase the rate of quests, not only did this force us to skip over alot of great towns, forests, villages, caves, but it also pushed us out of the "NEW" questing zones alot faster because Exp was too low. Removing flying from kalimdor and eastern kindgoms until level 80, instead of 60.
Heroic Mode made raiding so basic.
In ulduar, we had to do special things to unlock heroic mode, then ICC comes out and boom, Heroic Lichking in a flick of a menu switch.
Yes, they've added elite modes to fix this problem, but it doesn't really FIX the problem. This game is becoming nothing but menu's.
LFR, This design was great, till it was implemented.
Grouped up with 24 random strangers, who won't give a flying hoot about you. Then you have atleast 4 people who queue, put someone on follow, then afks while they're eating chips or watching re runs of Big Bang Theory. Flex modes is supposed to fix this problem, but once again they're implementing it wrong. Remove LFR, and implement Flex mode into normal. That way we can recruit others from diff realms but still be engaged. Heroic Modes would still require a server coordinated group for that current content.
The World is Evolving while World of Warcraft is not.
We still pay $15 a month, and $40 for a new expansion that comes out. I feel it's about time blizzard lowers their price for a month, or remove it completely. Keep the prices for expansions, but remove the monthly fee. That way you can focus on a blizzard store that would engage players.
Like league of legends and their skins. (Helm transmogs was a slap to our face, especially when we pay for this game. I have a Celestial Steed, but epic transmog like that just hurts. HURTS!)
Dailies in Mists of Pandaria are boring and dead.
Not much to comment on this anymore as 5.1 had a good model on dailies and 5.3 does too, although 5.3 quests were over too fast. Have it progress every week like 5.1 dailies did with rep, with a short storyline.
The world of PvP, slapped in the face.
Making gold as a pvper isn't a reality unless you're an enchanter. Make the gold that drops from players you kill higher. All it drops is copper, my repair bill from dying from pets is higher than that. Allow us to once again go out in the world to queue for a battleground and arenas.