Melfice here,
Coming to you all from Exodus, me I thought I'd voice my opinion. I really don't think Dark Knight is as bad as a job as "Mister Happy" has degraded it to be. I use Reprisal frequently. Doesn't matter if I am main tanking or not. I generate more enmity than my Paladin and Warrior jobs combined and keep it too. I might be biased about it. But I prefer stepping in the darkness before I let my rage take hold or trust in the light.
Another thing, Balmung is famed for being a roleplaying server, but why not every server?
Anyways, it'll be a pleasure to journey with you all through Heavensward.
