Stopped WHM'ing in dungeons at 50, when I put on worse gear to get better ilvl for a dungeon and got a lvl80 tank doing wall to wall pulls and dying in 3 seconds. Got reamed for not doing Holy spam. He was not friendly, so I ignored him and "gave up" on the run, he slowed down but we had like 10+ deaths and a wipe or two. After, looked up how WHM is expected to play, tried it in the next dungeon, absolutely hated the effect spam and never healed a dungeon/trial, or anything other than open world, ever again.

Just wasn't fun and the spell effect/sound just made it worse. Not enjoyable way to spend my time. I mainly heal for the serendipity of helping someone in the open world - you know, the place where MMOs are supposed to take place!! Instanced content was a technical solution to bad software/hardware, is not relevant in today's market, and needs to die already.