I have a number of heroic 5 man dungeons under my belt now, all via PUGs. It is unfortunate however that I've lost my desire to keep playing. Put it simply, the warcraft player base is not exactly the most mature and the state things are at the moment, healers are simple scapegoats for anything and everything that can go wrong. Once upon a time, I had mana to heal groups through their stupidity but with things as they are at the moment, I don't, which makes doing PUG heroics now more stressful than what they are worth. Healers are simply no longer appreciated, its bad enough that you have to burn what precious mana you have to heal the tank and dps through damage they can easily avoid, run out of mana and have the group blaming and voting to kick you out when there is a wipe due to you not having any mana left to keep them alive.
Last night was the last straw for me, I have now cancelled my ongoing subscription for this game. I was in a PUG group doing a Heroic Lost City. The tank and dps were all guilded in same guild. We wiped twice on General Husam, the first due to poor positioning of the boss by the tank around the mines, 2nd time the dps kept dying due to them not avoiding the mines, but killed him the 3rd go with me having to sacrifice myself to heal in spirit of redemption due to me runnining out of mana having to spam heals I didn't need to on damage which could have easily been avoided. On lockmaw we wiped once as I once again ran out of mana trying to keep up with the damage received by the suicidal dps but got him the 2nd go. Killed Augh the 1st go. On the High Prohpet we wiped 2nd phase. The melee simply was not getting out of the fast enough. To make things worst, the rogue lost all but 1% of his life standing in fire but instead of backing off and clicking on the light well behind him, he ran back in to melee the boss and deservedly died. I was kicked out of the group 2 bosses short of completing the instance.
The game as it currently stands no longer appreciates the hard work of healers but instead makes them easy scapegoats. There are simply more interesting things in life outside of wow, and being the blame person a computer game is not one of them.