Originally Posted by
Trassk
As I've said, I think Aethas could shape up to be a very believable character if they play this right.
He was once an archmage of the city of dalaran, and often was scrutinized by veressa and the silver convent for simply being there, the old grudges held by Veressa at him and his faction of elves just trying to find get themselves rooted.
And so, in such developing times, a certain warchief rises to power with a hatred against the alliance, and Aethas, though he wishes to remain neutral despite the obvious tension rising between the two factions, he is confronted by either hellscream himself or an agent of hellscream, that someone can be arranged to deal with the silver convent.
Aethas, who despite being a powerful mage, is still a mortal who just like anyone else could give into temptation, and the temptation of having that problem dealt with was so appealing to let up. Either this, or Aethas was confronted by hellscream or an agent, and told he will either follow what he says, or be taken out for disobeying Garrosh (maybe even the threat was aimed at the sunreavers themselves).
And so, Aethas makes a choice, simply to look the other way, well hellscreams agents use dalaran as a means to an end. He doesn't think of the consequences of this decison, but thinks more on what good might come of it, and even maybe for the sake of his own people (the sunreavers).
What develops there after, now Jaina being the kirin tors leader, and her finding out about how the sunreavers held some kind of part in Garrosh's plan, she didn't care for whatever reason Aethas looked the other way, he was as guilty as Garrosh, and so punished him and his people.
Well Aethas wanted what was best for the sunreavers, he gave into Garrosh's tempation. He didn't know what would happen, he simply thought it the better choice at the time, and so now when at the throne of thunder when faced off with Jaina, he is faced with what he did in turning the other way, the mistake he made and the cost it brought to his people, but he won't open up to admitting that mistake, after all what good would it do now, its already been done.
To me, this makes Aethas a very human character (despite being a elf but really all characters in wow come from a human perpsective) in that he made a mistake, his people paid for that mistake, and now he tries to bottle up the guilt of that mistake.