hhmmm, so another interpretation of a thief of void is someone who steals away secrets and nothingness. instead of simply becoming irrelevant they could become completely intangible instead. Also would a thief of void be someone obsessed with figuring out what secrets of the universe are lurking in the shadows stealing away the veil of obscurity hiding the truth ?

I would personally say yes, that would fit a Thief of Void, although the description for the Void Aspect somewhat seems to imply Void Players aren’t necessarily concerned with unravelling the secrets of the world, and Light Players seem to be more focused with that, so… Your call?