If you win while ATTACKING, you get 1800 honor.
See the extra zero? Wouldn't it be nice to have that tacked on every 4 hours, instead of getting 180 honor every 2 hours?
Winning 2 Tol Barads while defending = 360 honor
Losing 1, Winning 1 TB while attacking = 1875 honor
For those of you who aren't too good at math, you get MORE HONOR from win trading with Tol Barad than if you defend it.
To the rest of you... tell your backwater, inbred allies to stop being terrible at the game.