You guys know best, but it seems to me like as you progress, you do want things to become slightly easier. As a player, if I'm having as much trouble in combat at rank 3 as I am at rank 1, that doesn't mean it's "scaled well", it means there is absolutely no reward.
Especially in WFRP where it's not easy staying alive and reaching rank 3, once you do, you sort of expect the reward of having an easier time in encounters, otherwise it feels as if you're being ripped off.
It annoyed me to no end that as I progressed and got better, there was always something kicking me back down. Either the rain in Stormdorf, the effects of Morrslieb in Liber Mutatis, or the effects of Morrslieb in Edge of Night. Just when I was finally ok, and could cast spells unimpeded, WARPSTONE !!! Dum dum duuuuum.
Come on, seriously? That's just shoddy writing/gm-ing. Give me difficulties in social situations, since I've got a mostly combat oriented character, not in freaking combat. Do you also add 1 purple and 2 blacks on top of normal difficulties to all Fellowship checks for your party's face, regardless of what he's talking to?