Blizzard poster Ghostcrawler has made an interesting post regarding some common questions/concerns about DK tanking.
Highlights include:
Q: Is there any plans to give us spam able Aggro-generation skills back?
A: Abilities that add too much straight threat don’t scale well. Paladins would have been far and away the best tanks for threat in Sunwell if more gear had been available to them. Part of the reason is because their threat scales so well with their dps. We’d like to get away more from +threat abilities for all classes if we can.
Q: Are we supposed to be hitting the Armor Cap? Or an Avoidance cap? Because right now i do not see that happening either way and leaving us kind of… lacking mitigation.
A: No class should be close to either in Lich King. That was actually a problem in Burning Crusade — witness bears being unable to improve their tanking gear because of the armor cap and the introduction of “Sunwell Radiance” to work around excessively high avoidance values. We think it’s fine for tanks to reach the uncrittable mark, and being uncrushable is no longer an issue. Beyond that, we want you to always have a reason to improve your gear… and always be a little scared of those bosses.
You can read the entire post here.