Why? Blizz didnt make the Warriors able to go DPS for no good reason, thier is a reason.  True Warrs are the best tanks and will continue to be good tanks, but thier armor also allows them to hold out longer making them useful for anything.  Get over it

Well, i believe every class should have a DPS Spec and that spec should make them completely viable for endgame raids.

But sadly Blizzard doesn't see it that way, the way they have it set is this:

Warrior = TANK/DPS

Rogue = DPS/CC

Mage = DPS/CC

Priest = DPS/HEALER/CC

Warlock = DPS/CC

hunter = DPS/CC - I am not sure about the CC on this class

Paladin = TANK/HEALER - Despite having a DPS Spec, they are not counted as DPS capable, which i think Blizzard needs to change to atleast make them viable

Shaman = DPS/HEALER

Druid = TANK/HEALER - Tanking Spec is also a DPS spec, though players refuse to see it and expect feral druids to tank and offheal and battle rez

People need to just accept the fact that all classes are capable of dps, some maybe be not as good as others, but just because it isn't as good as a rogue or mage, doesn't mean that the ability isn't there at all.

The way my brother sees it is this:

Tank? = Prot Warrior

Heal? = Holy Priest

DPS = Mage/Rogue/Warlock

Rest, IF severely needed = Shaman, Druid and Paladin are expected to either heal or tank (except Shaman when it comes to tanking)

Trust me, i have a Feral Druid, fully geared out for DPS in kitty form and all i get is: 'reroll a rogue you noob and stfu and respec or fuck off'

I am really close to just ditching this game, cause all the players care about is the best and nothing less then the best and to me, if you can't play how you like, then why bother playing? Its a game, its meant to be fun and nothing else.

I have not been playing for a very long time, and my main is currently a 67 arms spec warrior.
For a long time, I didn't really do instances, so having to tank wasn't an issue for me.
Earlier today though, I was in LFG for a couple different instances and somebody invited me to their group for Mana-Tombs. Without saying anything to me, they started to summon me there and since I wasn't doing anything I accepted.
The first thing someone said when I was there was "Oh, it's not a tank" as a 70 hunter in the group pulled 6 mobs and we wiped. They kicked me out of the group. I get a free portal to where I wasn't questing, a quick 3g repair bill, and absolutely nothing done.
Most of the time people will ask me if I am a tank or not before inviting me, and I will say no. Depending on the instance, I will tank without a shield or talent points in prot, defensive stance has been good enough for ramps, BF, auch crypts, and underbog. When I tanked BF without a shield, I did the most damage, 33%, and took most of the damage, split between another warrior and a hunter's pet. After tanking this I was told by the healer "I think most warriors should be DPS, they already have tons of armor from plate, why do they need more? They could just help us do damage."
Even in BG at 67, I do nearly the most damage in AB, WSG, and EOTS, when a lot of the people in there are 69.
The hardest instance I have done is Sethekk halls, which a 68 paladin tanked for, I off tanked / DPS. The pally was able to hold agro and I could pull tons of damage on the mobs, we cleared it fine.

Although I have not done any heroics or level 70 instances, I could definately say that a DPS warrior is a lot better than a tank until level 70 whether you are doing PvE or PvP.

I know what your saying people whisper  me all the time what spec are u and I say that im DPS and I always get the ....oh then they go I guess you can come then boom my lvl 65 leads the group in DPS and beat out lvl 70's to make a long story short I produce a bunch of damage and I can also take it in the face so I say DPS warriors forever