Well, level 10s don't have fear anymore but i can assure you that stacking sp/haste hurts alot, but
Fear is like gauge with a rogue and are both gone from level 10s. Fear is learned at level 14 now so i guess that level is more viable then 10.
Might be a good thing for Kore to ad to her imbalance low level pvp list. PvP without such things like fear and gauge makes the pvp feeling so silly fighting classes that can heal (cast) in pvp and there is no way you can interrupt at this level unless its a racial if im not mistaken.