Tactful ways to inform people that they're playing badly?

[SerLuke]

Okay someone seriously hit the like button on the post saying they “HATE” the healer who only healed? Okay seriously I’m done, there is a serious issue with toxic elitism going on and it needs to be called out, this is not acceptable by any means.

Stop letting this cynicism grow and grow here on the forums, seriously it’s only serving to generate hatered on the forums, if other people’s DPS numbers are making you bitter and cynical, then please for your own sake and the sake of the community, STOP LOOKING AT THEM.

[Hash_Browns]

Okay someone seriously hit the like button on the post saying they “HATE” the healer who only healed? Okay seriously I’m done, there is a serious issue with toxic elitism going on and it needs to be called out, this is not acceptable by any means.

Stop letting this cynicism grow and grow here on the forums, seriously it’s only serving to generate hatered on the forums, if other people’s DPS numbers are making you bitter and cynical, then please for your own sake and the sake of the community, STOP LOOKING AT THEM.

You're overreacting.
But please do go on about how its ok for a level 76 AST to only heal, and not use over half their kit, or how it's elitist to expect them to actually use divination, attacking spells, or cards.