We should have known he was a sad man when he appeared with sad emojis on his belt.
His death cinematic feels so sad.
I find it so heartbreaking when he just accepts his fate and relaxes right before exploding 
(Ignore Illidan, the jerk!)
Blizzard please bring Kil’jaeden back!
I think it’s really cool how DH’s can use demon form now !
I’ll melt you like a crayon…
Yes please bring kil’jaeden back for the 3rd time now
To be fair, the first time we only fought his upper body.
Sunwell plateau was merely a setback!
And we didn’t kill him, we just flushed him down the Sunwell toilet.
hoping we get to fight his lower body next 
I hear Kil’jaeden has been hiding an extra Pillar of Creation all along…
Not with your demon form ;))
No, let’s bring Garrosh back.
Garrosh did nothing wrong.
we already did in the firelands didn’t you ever wonder where Ragnaros got those stubby limbs?
Quit trying to destroy our hopes and dreams with your logic.
We will fight Kil’jaedan’s legs someday. His only ability will be “tap dance” and you have to dodge his tappy-feet while you fight him.
Can’t. We destroyed him in the twisting nether. However, they could make an excuse for Archie and bring him back since everyone except those who did mythic killed him on Draenor.
well being that MU Archimonde was killed on azeroth and he since he was a member of the burning legion like every other demon the laws of physics don’t apply to them here death is merely a temporary thing unless we kill them on their world he can simply create a new body and come back
Those look less like sad emojis and more like demonic stylized Grumpy Cat symbols to me. Well, anyway, I suppose if Velen of all people could find it in his heart to have pity on KJ, and give him comfort as he was dying, the rest of us could manage something for the poor guy.
Oh, BTW: Felforged Grumpy Cat is confirmed as the final boss of the xpac. You heard it here first.
I love you, Mortis.
Well, Sargeras was using Argus to resurrect Demons killed in the Nether.
Maybe Kil’jaeden got resurrected before we murdered Argus 
I’ve always thought that, considering the way Sargeras was abusing Argus, what we did was more of a mercy killing than a murder. (Yes, I felt sorry for Argus. I also cried over the funeral pyre scene in Return of the Jedi.)