Thief damage in pve
thief is bad at raids, probably. damage is ok, but not good enough and thief has no support. just like necro.
Post-expansion update thief has dropped to the lowest sustained DPS class in the game in raids and fractals (they eke above condi necros in dungeons thanks to night/slaying potions and sigils). As they lack much in the way of team utility and are extremely fragile, the common view is that the class has no place in an organized raid.