I keep seeing so many posts on the tank forums, healer forums, and general page about how tanks are not 'stance dancing' enough and their dps is low. Also how healers who don't also 'stance dance' and dps enough should/will be kicked. This huge focus on personal dps for every single role in the game is discouraging, and I understand it is due, mainly, to how much everyone overgears everything now. But the mentality will stick, and be detrimental to the game.
I love healing, and I dps as much as I can so I'm not bored, but there are some who choose to not dps as a healer and to me, that's fine. Their role in the game is 'healer' - a spot they chose and one that is meant to heal. Should they dps? Maybe, if efficiency is top priority. But if it isn't fun to them, and this is a GAME, why play something in a way that isn't fun anymore when all they want to do is heal. So, I get those players (though I'd be totally bored if I didn't dps).
The same with tanks -- though to a little lesser degree since dps is built into even their enmity combos to some degree. However, people berating tanks for spending too much time in tank stance and not optimizing their dps are also missing the point. Is aggro held? Do mobs attack anyone but the tank? Does the tank pick up adds (if needed)? Again, as with healers, extra dps is always nice, but really shouldn't be 'expected' of the role.
Indeed, tanks and healers are being called out for lack of dps, when the ACTUAL dps of the game cannot be called out for often sub-par dps since to do so would almost certainly involve parsing and could result in a ban. So here we have tanks and healers who have roles with dps as a merely incidental and extra (mostly - tanks, see above) benefit being harassed for not doing what the true DPS should - and the true DPS being unable to be called out for the exact same thing.
At this point - everyone should play a true dps class as it seems 'damage per second' is all anyone cares about in roles anymore.