I wish someone would sticky this already.
The facts about Expertise and Hit in the current game.
Look its not that Expertise and Hit do not increase your threat, they do. However they do so on a much smaller scale than people realize.
How all tanks generate threat (Listed from the highest source to the lowest):
1) Using your abilities properly. This is paramount, nothing increase your threat more than this.
2) Spec and Glyphs.
3) Proper use of external abilities such as TotT and MD.
4) 26 Expertise Skill.
5) Hit rating.
So I should just mindlessly stack stamina?
Stacking stamina is not mindless unless you do not understand why you should be doing it. Tanks that do not min/max their survival by stacking stamina (or armor where available) through gems and enchants are only doing their raid a disservice. There have been numerous reports from highly respected community members here on tankspot, in world ranked guilds that tanked Heroic ToGC 25 with as little as 40 hit rating and are now also in Heroic ICC 25 with as little as 16 expertise rating. These tanks are working with DPS that are pulling 10k+ on most fights and doing just fine without reaching the hit cap or the expertise soft cap.
If a tank is having threat issues no amount of expertise or hit is going to correct that, see #1 & 2.
There is something so appealing about backhanding someone across the face with a shield.