[Hamahakki]

Tanks at lower levels keep aggro worse for a number of reasons:

- Mobs have lower HP so people don't want to wait for the tank to get a head start on threat
- Taunt is less effective because the skill cap is lower and because you fight more yellow and red monsters
- Squishy classes are less squishy so they care less about getting hit
- Many of the good threat weapons don't proc yet
- Non-twinked tanks are way behind twinked melee characters in terms of gear

At higher levels, all of these problems get better.

Edit: Note all this applies to warriors only, there is no excuse for a Paladin/SK/Ranger not to keep agro as long as they have mana