Why is there no faction pride?
Why is there no recognition of guilds/players?
Why is there no admiration for players feets?
Why don't people care?
This situation started somewhere. And the exact moment has been stated many times by various posters on mmo-c (though you could argue if it didn't start earlier) that this started at the end of WOTLK.
In WOTLK crossrealm tech for LFDungeon was added. First you had server only LFD. Which worked fine. Sure queues were a bit long at times. And that is also why Blizzard put in the crossrealm tech to have quicker queues. With that came anonymity. It was then that I personally felt my reputation as a player diminished. No one cared who I was anymore. No one knew me since they weren't from my server. Meanwhile people from my own server started not caring aswell. They didn't have any contact with me as they did before. They didn't have to remember my name. However helpful or pleasant I was, it didn't matter anymore.
Dungeons were a snoozefest in WOTLK (apart from the last 3 added) and thus communication was also not required anymore. This combination was devastating to the social aspect.
Then we got the decision that we would no longer have 25 man guilds solely. 10 man guilds were also added. The communities people had built were broken as guilds broke apart for the "easier option" of running a 10 man guild instead of a larger 25 man one. Still 25 mans in WOTLK were sort of more prestigious as the fights were generally harder then the 10 man version. Then we get Cataclysm. Cataclysm started out WELL. Dungeons were hard again and people cheered (atleast the community I was a part of) with a sense of TBC and Vanilla nostalgia. After a few weeks to a few months they nerfed them into the ground. They became a snoozefest once again. Communication died again during dungeons. People just seem to have gotten accustomed to easy snoozefests in WOTLK that they didn't have a clue how to play. So they fixed it. Gone social aspect once again. 25 man guilds collapsed en mass. The 10 man was vastly superior now to have vs a 25 man. Easier to manage and more or equal in prestige of difficulty. So the larger communities got a bit hit once again. Fast foward to WoD:
Making friends ingame. I am not the one just handing out my RealID to just anyone. I want to be able to add a friend like before. But adding anyone from a different server is impossible without RealID.
I am not alone with this. So the games social aspect takes another hit
And then you have the fact that you do not need ANYONE in the outside world anymore. Or inside a dungeon for that matter. In the outside world everything is so easy, you can solo everything. In dungeons you can basically have 4 NPC's fighting with you. It wouldn't matter. Maybe it could even turn out to be a more pleasant experience. No one says anything anyway.
You could ofcourse argue that someone (me) can start talking in dungeons or in the outside world. But to what end? Why would I want to say anything?
1. chances are you do not get any response (I have had this experience)
2. chances are they will tell you: "stfu noob and finish the dungeon already so we can get out of here" (which also says something at how much fun a dungeon is really)
3. chances are that you get kicked for just speaking
4. chances are that you actually get a response but my experience is that the "chat" dies right after the response
There is no incentive to talk about anything. Nothing would trickle anyone to speak up about anything fun. "Everyone just want this horrible experience that is the dungeon to be over quick for the reward that it gives." Which is generally valor or something.
Faction pride?
People might still have faction pride but no one can be arsed to go World PvP. It is not rewarding enough. The time we have to game can be spend more efficiently for greater rewards even if the journey of getting those rewards isn't fun. But since we want to get those rewards asap and not have fun doing them, we want them to be over quick! And socializing stands in the way, especially since it is meaningless. You won't see eachother anymore.
Human behavior:
Will you talk to people you do not know in real life if you have nothing to gain from that conversation? Ask this question.
You stand in an elevator and you are the one standing next to the buttons. You probably would ask people in the elevator where they want to go right? That is normal imo. But you don't go ask them about their personal lives.
If you are standing in the middle of the street would you engage in a conversation with a random person? I think not.
If you are in the gym with a person who you've seen now perhaps of the 2nd or more times... chances are that you will end up having a decent conversation at a point. You don't have to ofcourse but you might if the setting/situation is right. You have something in common and you might see this person again next time you are there.
These situations are almost non existant in WoW outside of guilds. There is no reason to talk about anything. If anything people are frustrated about their experience ingame and lash out.
In short: You've got it a little backwards.
I also believe Blizzard fucked up with knowing what is fun or not.
Dailies are fun they thought, so dailies in MoP became mandatory.
Response of players: We don't like dailies!! (but they actually liked dailies, just not the being forced thing.)
Response Blizzard: we'll remove dailies because you don't like dailies
Blizzard: we see everyone and their grandma doing LFR, so LFR is fun!
But actually LFR offers great rewards for very little effort. Like dungeons, players just want LFR to be over and get that reward from boss X they are trying to get.
But that is another story... sorry for the derailment.