I pondered over which forum was the correct place for this, and at length decided that since it's somewhat an idea, that I might as well stick it here.
I remade a character today, who was a troll, and is now a pixie. As a troll I obtained the trait twisted (under physique), but when I remade as a pixie, twisted wasn't available as a trait.
In my opinion there's no reason why a pixie shouldn't be able to have the trait twisted. Any race should have the option of having most traits, unless they're vastly out of sync with the race. Of course trolls shouldn't have wing traits, and non-phasians can't have sigil traits. But maybe these could be looked over a bit? Especially now with the race patch coming and whatnot.
Then again, maybe I'm missing some important reason why pixies shouldn't be twisted, in that case, feel free to fill me in.