User blog comment:AveryWood/Reasons Why Going With the Empire is Better/@comment-4683558-20120815215801/@comment-3492791-20120817013825

Actually, if I remember correctly. He was a Thalmor prisoner in the "Great war". I think they may tried to make him a sleeper agent or something, but are currently not doing anything with him because his rebellion is weakening the Empire. Which in turn will make it easier for the Dominion to defeat them again later.