Topic on Talk:A Lighter Shade of Grey

Well, the only sources that I have is from Wikia and 1d4chan. But the gist of it is that GW made them to stand out from...everyone else and another obvious reason. People were pissed off about having an "optimistic" faction in the lore, so they gave the Ethereals some dubious mind-controlling powers. I have no idea about the concentration camps, but I'll vouch for their never-ending quest of expansion. But overall, they're better than certain organisations of the Imperium of Mankind; but it isn't much since they're the new guys and a lot hasn't been revealed on the castes aside from Fire, Ethereals, and Air.