In older MMOs your actions and even the actions of others had consequences. In Ultima Online you could be killed by players at any time while outside towns. If a player killed you they looted all your gear. If you happened to have your house key on you then they also got a nice new house for free. If you died deep in a dungeon your corpse rotted. If you were a PKer you gained a murder count which meant you couldnt enter towns and if you were killed you could not rez without a penalty until it went away.
In Everquest if you died you had a corpse run and an exp loss requiring a rez. There were factions for everything. If you were an evil race you could not enter good cities and vice versa. During Velious expansion they added factions for armor quests. Picking one meant you became enemies to the other 2. Killing in plane of growth made you KoS in the high elf city. Also there were consequences of how you played. If you were a helpful player you gained friends and thus groups. If you were good at your class you got groups. On the other hand if you were an asshole ninja looter people plastered your name on that server's forums and you didnt get groups. If you were a trade scammer people made it known and no one ever traded with you again. If you sucked and didnt know how to play you didnt get groups. Once word got around that you were a bad or a jerk the only way to get rid of that was pretty much rerolling to another server with a different name and hope no one found out.
On the other hand in WoW you can be the worst player in the world or a total douche bag asshole and what happens? Not a damn thing. You can still raid. You can still trade. You can still get groups. You can still get gear. Nothing you do will ever have a negative result. There are no factions to ruin. No possible way for an Orc to ever become hated by another Horde race. Doesnt that kinda take away from the game? Having negative consequences for your actions both within the actual game and also in the community makes you think about what you are doing. I know stuff like corpse decay resulting in total gear loss wouldnt work in WoW because of loot being harder to get but there should be something. There is no penalty for being a bad player who doesnt know how to play. There is no penalty for dying in PvP. There is no penalty for dying in PvE. There is no penalty for being a douche bag. Even if you do go the forums and post about someone being a ninja looter, a scammer, or a bad the post is immediately removed and you get infracted. I mean really? You are trying to warn the community to stay away from someone and you are the one who gets punished? Shouldnt there at least be some consequences for negative actions?