Just the d? That’s odd. Also, what’s her preference in place of s/he? I’m genuinely curious — I’ve twisted myself into a pretzel when I had to write blurbs for programs I was organizing, featuring folks who preferred to call themselves ze / hir / they etc. I’m all for gender neutral pronouns but it makes my head explode grammar-wise.

As for unbiased, the only thing I could vaguely think of is if she prefers that it be used for opinions / stances / thinking and not people? Conversely, to say that someone has certain biases but not that they are biased / unbiased? I can’t come up with a good reason for such a preference but that’s the only thing that occurred to me.