You got a point about the thieving nightwalkers, but I
think everybody has their weakness. Like Valguarnera said
about Transmuters, they are horribly equipped to fight
someone of the likes of a berserker cloud rager warrior
like yourself. Yeah, it does suck... and heavily, but so
does fighting someone like yourself as a scion transmuter.
Instead of thinking of the poor Villager that cannot keep
the Scepter he raids for, think of the poor scion tranny
that can't defend against the single berserker cloud rager
warrior on his lonesome.

I mean it is all relative, the Imms could decide to remove
it and change it to something else. Personally I think the
thieving capabilities are neat because its different from
other cabal skills. It sucks at times, but then again so
does fighting someone like yourself for most of your
enemies. You complain that you can't take a Scepter, we
complain that me and two others get steamrolled by you
when you bloodthirst (although I'm certain that's not
always the case, but I've seen logs).

Anyways, my two cents.
Kazadan